Practical clamp holder for aluminium blinds with steel top rails (25 x 25 mm) for quick installation on the open window casement Easy to install: attach the two clamp holders to the upper window casement by simply clicking in, use of 2 clamp holders for up to 90 cm wide blinds and one clamp holder per 45 cm width Multiple combination possibilities: easy to attach various Gardinia aluminium blinds with steel top rails without drilling or screwing, ideal for windows with rubber seal in rented apartments Secure hold: high-quality plastic clamp holder, easy attachment of the carrier systems thanks to innovative locking mechanism Box contents: 3 GARDINIA universal clamp holders for aluminium blinds with steel top rails 25 x 25 mm, plastic, white