With a shape and design inspired by classic skateboard rails, these peel n&&';; stick foam rails offer your topsheet extra grip for grabbing, and traction for one-footed riding. FAKE SCREWS - To make them look real. C-FOAM - Soft, safe, and squishy, this specially formulated rubbery foam blend is lightweight, heavy duty, and grabs like a crab. SCREW GLUE - Glued on. Like it was screwed on. GRIPPLE TEXTURE - Extra little gripping nipples. 2 PER PACK