Description Made from durable and reliable material, it is built to withstand long-term use. The spring hanging piece allows for flexible adjustment of the roller blinds' lifting speed, catering to different needs. With its external sunshade function, it effectively blocks sunlight and heat, helping to keep indoor spaces cool and comfortable. Suitable for various roller blinds, it offers excellent light-blocking and sunshade performance while enhancing privacy. Features - Color: Silver - Material: Stainless steel - Size: 20.00 x 10.00 x 0.70 cm / 7.86 x 3.93 x 0.28 in - Stainless steel construction ensures durability and longevity - Designed for reliable, long-lasting performance - Easy installation with a unique hook design on the accessories - Secure and stable attachment prevents detachment or loosening - Adjustable lifting speed allows for flexible control Package list: 4 x roller shutter spring spare parts