This type of roller blind is the most practical of all, as it allows maximum optimisation of the space where it will be installed. It is perfectly integrated into the window sash, as the box system and guides are installed in the sash itself, allowing a comfortable opening. The guides, which are made of PVC, are attached to the glass very easily thanks to the adhesive strip. This type of blind is ideal for any window, but above all for windows with a wide sash, and its installation is unbeatable in kitchens and bathrooms. In addition to many other models of curtains and blinds as a complement to their enclosures.