Crafted from iron material, this accessory durability and reliability, ensuring performance. The spring hanging piece adds versatility by allowing you to adjust the lifting speed of your roller blinds, accommodating different preferences. Its external sunshade feature effectively blocks sunlight and heat, creating a cool and comfortable indoor environment. Compatible with a wide range of roller blinds, it delivers exceptional light-blocking and sunshade capabilities while enhancing privacy. Features -Color:Assorted Color -Material:Iron -Size:20.00X15.00X0.80cm/7.86X5.89X0.31in - material for use: the material used in the roller blinds' accessories is highly , ensuring that they can be used for a long time without wearing out or breaking. -Ensuring reliability: that the roller blinds' accessories will continue to function reliably even in humid or wet conditions. -Convenient installation with the innovative hook design: the roller blinds' accessories feature a unique hook design, making the installation process quick and easy. -Secure and stable attachment, preventing detachment: the hook design ensures that the roller blinds' accessories are securely attached, preventing them from detaching or falling off. -Versatile adjustment of roller blinds' lifting speed: the roller blinds' accessories allow for easy adjustment of the lifting speed, providing versatility options for the user. Package list: 20 x roller shutter spring spare parts