Strap guides up to 14 mm wide - set of 8 Size: 6 mm Hole spacing: 41 mm The belt must be removed for installation Mini belt with brush seal and guide roller to prevent friction and protect the belt Mini roller guides transport the fixed blind strip as it enters the window frame. The item consists of a frame with guide wheels, a brush seal, and a removable cover. Guide rollers ensure optimal unwinding of the package without friction. Integrated joint brushes prevent drafts and help save energy. The mini belt guides are attached to the frame, and the straps pass through the frame housing to the bracket. To do this, first drill an opening in the window frame and install the roller shutters according to the screws (hole spacing 41 mm). Screws are not included in the delivery. Technical specifications: Screw hole spacing: 41 mm White Material: Metal/Plastic Package includes: 8 x roller blinds with rails Product advantages: Professional quality products Ideal after installation or arming Guide rollers prevent friction Energy saving: the brush seal prevents drafts in the roller shutter box Comment: The belt must be removed for installation