Material: The blinds hardware is made of PVC, which is durable, stable and not easy to fall off. Quantities: Roller blind repair kit includes clutch, bracket, ball chain (90 cm in total length). Apply to: Roller blind spare parts are suitable for roller blinds with 25mm diameter roller tube. Please confirm whether the size is suitable for your needs before purchasing, thank you. Installation: Remove the blind from the window. Use a screwdriver to remove the broken clutch from the blind. Use the new clutch and adjust the ball chain. Insert the new clutch controller into the tube of the roller shade, then reinstall the shade. Widely Used: The roller shutter repair kit can be installed indoors and outdoors. Bedrooms, living rooms, classrooms, offices, hotels, etc.