70mm Enclosed Spring Housing with 1kg or 1.5kg Lifting Force for Manual Windproof Roller Blinds

Product Description

70mm Enclosed Spring – Compatible with 70mm roller tube

This spring is fully compatible with the 70mm roller tube, making assembly quick and easy. Each spring box represents either 1kg or 1.5kg of lifting force, allowing you to add or remove units as needed based on the fabric weight. When used in manual windproof roller blinds, it provides excellent hold-up performance, smooth operation, and effortless pushing and pulling.