Kierr gap holder window model Kierr Flex
The window model Kierr Flex 100 is made of aluminium and very light in weight The windowholder has a big clasping surface, which makes it once again a perfect gap holder by Kierr. The rubber protection of the plastic clamps makes sure that they connect well to plastic, wood, aluminium and even synthetic material and this is all without drilling or screwing ! With the knurled knobs you can create a gap between 5 to 15 cm. Do you need the option of a bigger gap for your window-holder? Then choose the window model Kierr Flex 200. With this Kierr Flex 200 gap holder for windows you can easily create an opening between 15 and 30 cm. See specifications for more information.

Option internal turning windows
The best solution to ventilate your rooms without having that annoying sound of ticking hooks is to use the gap holder by Kierr for you windows. The Kierr Flex 100 can be attached without screwing or drilling. The extra large clasping sheets make that this aluminium version is easy to use. You won’t damage your plastic, aluminium or wooden frame and it puts your window steadily ajar. The Kierr Flex 100 is also ideal if you need to create an entrance for your cat or dog while ventilating the room at the same time. The best solution there is!