{"id":2658,"date":"2024-07-01T14:57:44","date_gmt":"2024-07-01T14:57:44","guid":{"rendered":"https:\/\/www.kierr.nl\/product\/kierr-flex-300\/"},"modified":"2026-10-09T11:30:52","modified_gmt":"2026-10-09T09:30:52","slug":"kierr-flex-300","status":"publish","type":"product","link":"https:\/\/kierr.nl\/en\/product\/kierr-flex-300\/","title":{"rendered":"Kierr Flex 300 (no drilling or screws required)"},"content":{"rendered":"

The Kierr Flex 300 door stopper is made of aluminum and has an elegant design. The Kierr Flex 200 and 300 series feature a hinged design, which makes it easier to open the door stopper when you want to walk through the door without having to remove it. Using the convenient twist knobs, you can securely tighten the door stops. You can mount the Flex 300 high on your door so that you, too, can easily walk through the door without having to open it. Additionally, you can fold it up for easy storage. The rubber protection on the flexible plastic clamps ensures a secure fit on plastic, wood, and aluminum surfaces\u2014and even on window frames with rounded or beveled corners! Use in children\u2019s rooms is at your own risk, partly due to parts that can come loose. This also applies to outward-opening windows, as the device could fall down. <\/p>\n

 <\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Property<\/strong><\/th>\nValue<\/strong><\/th>\n<\/tr>\n<\/thead>\n
Min. gap<\/strong><\/th>\napproximately 15 cm<\/td>\n<\/tr>\n
Max. gap width<\/strong><\/th>\napproximately 50 cm<\/td>\n<\/tr>\n
Min. clamping position<\/strong><\/th>\nabout 1 cm<\/td>\n<\/tr>\n
Max. clamping position<\/strong><\/th>\napproximately 20 cm<\/td>\n<\/tr>\n
Dimensions of the gap holder<\/strong><\/th>\nApproximately 72 cm long, 3 cm wide (excluding the clamping blade); collapsible for easy storage<\/td>\n<\/tr>\n
Dimensions of door clamping plates<\/strong><\/th>\n8 cm wide, 4 cm high<\/td>\n<\/tr>\n
Dimensions of clamping plates for window frames<\/strong><\/th>\n8 cm wide, 4 cm high<\/td>\n<\/tr>\n
Protection for window frame\/door clamping plates<\/strong><\/th>\n2 mm cellular rubber<\/td>\n<\/tr>\n
Material \/ Color<\/strong><\/th>\nAluminum and movable plastic clamping plates<\/td>\n<\/tr>\n
Interior Design<\/strong><\/th>\nSturdy yet elegant<\/td>\n<\/tr>\n
What’s in the package<\/strong><\/th>\nDoor stopper supplied complete<\/td>\n<\/tr>\n
Warranty<\/strong><\/th>\n1 year<\/td>\n<\/tr>\n
Sold per<\/strong><\/th>\nPer piece<\/td>\n<\/tr>\n
Instructional Video<\/strong><\/th>\nhttps:\/\/youtu.be\/f3J-bHeeRL0<\/a><\/td>\n<\/tr>\n
Weight<\/strong><\/th>\nApproximately 400 grams<\/td>\n<\/tr>\n
Secure<\/strong><\/th>\nplastic knurled knob<\/td>\n<\/tr>\n
Supplies<\/strong><\/th>\nNone<\/td>\n<\/tr>\n
Brand<\/strong><\/th>\nKierr<\/td>\n<\/tr>\n
What is the product suitable for?<\/strong><\/th>\nOpening\/securing doors<\/td>\n<\/tr>\n
Applicability of the gap retainer<\/strong><\/th>\nInward- and outward-opening doors. In addition, this product is intended for use only with inward-opening windows. Use at your own risk. <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

With the adjustable Kierr Flex 300 door stopper, you can prop doors open wide enough to walk through without drilling or using screws.<\/p>\n

\u2713 Suitable as a door prop or door stop
\n\u2713 Flexible, swiveling plastic clamping system with a protective layer of cellular rubber
\n\u2713 Opening between 15 and 50 cm (if placed high on the door, you can walk through it yourself)
\n\u2713 Elegant design made of lightweight aluminum
\n\u2713 Knurled rotary knobs
\n\u2713 Includes a hinge for easier opening and convenient storage
\n\u2713 Also suitable for rounded and beveled window frames<\/p>\n

Not suitable for use with a screen<\/strong><\/p>\n","protected":false},"featured_media":3823,"template":"","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_brand":[],"product_cat":[54,55,61,60],"product_tag":[],"class_list":["post-2658","product","type-product","status-publish","has-post-thumbnail","product_cat-door-hardware","product_cat-door-holdback","product_cat-window-fastener","product_cat-window-hardware","desktop-align-center","tablet-align-left","mobile-align-left","ast-product-gallery-layout-horizontal-slider","ast-magnify-disabled","ast-product-tabs-layout-horizontal","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"acf":[],"yoast_head":"\nKierr Flex 300 (no drilling or screws required) - Kierr.nl<\/title>\n<meta name=\"description\" content=\"The Kierr Flex 300 door stop is made of lightweight aluminum. 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