The Rio Roller Jam Plugs are made with 30% Recycled GRS Material and features a smiley face on the screw head, adding a little bit of character to your skates! They are designed to protect your skates and rinks when sliding, dancing, and jamming. Available in two sizes; 5/8” for adjustable toe stop plates, and 5/16” for fixed toe stop plates. Materials: PP with Fibre, 30% Recycled GRS material. Sold in pairs.