Usage: 32?mm roller blind clutch, shade weight, max load 5?kg (11?lb). This product is suitable for inner tube diameter 30mm. NOTE?: Please check the inner diameter of your replacement roller blinds before purchasing (see figure 2 for how to measure your inner tube size)?! ! ! Zipper: High quality roller blind chain: 4.5mm x 6mm; total length about 3 meters (hanging length 1.5 meters) Installation: 2 strong roller blind brackets; Bounce end caps for easy installation and removal. Package includes: 1x roller blind clutch kit, 1x metal bracket, 1x blind rope chain, a bag of screws. Note: The data are all manual measurement, please allow some error by 1 - 3cm, due to the difference in light and display, there will be a certain color difference, depending on the physical object received Shipping Quantity: (according to the main image)