Shock Toe Pro Straps Are Made Using High Grade Velcro and JenPro. Shock Toes let's the pads rotate on your legs to help save the strain on your knees and hips. Shock Toe Instructions 1.Remove original lace from toe bridge. 2.Weave the Shock Toe elastic through the holes of the toe bridge as you would with the original lace. Do not knot it off on the inside. 3.Take the ends of the Shock Toe elastic and weave it though the holes of the Shock Toe knotting off both ends. 4.Adjust the tension of the elastic as required. 5.Then place around your skate as you would your original lacing.