The raised bed covers are custom-fit for raised beds in the Basic (S) and Stretched (L) formats. Protect your plants reliably from pests and precipitation: The PE film with integrated UV protection is attached to the frame with Velcro fasteners, which can be easily inserted into the ground. The film ends at the bottom of the bed and can be weighted down there. Alternatively, it can be stretched over the edge and tightened with the cord embedded in the hem.