spring roller blind, roller shade, roller film, yacht film, RV film. RL-SR25 is our latest product. it is 25mm’s diameter. The cover and bottem bar is bead blasted & oxide coating. It is designed for RV and Yacht and suitable for shading. The max. width is 1.5m and max height is 2.5m. There is internal spring system to adjust rollback speed according to customer’s need,to be stopped at random position, with rollback speed reduction unit and top auto-stop rollback assemble.