Billet aluminum. Driver boards are 13.8" (35 cm) long and 5" (12.7 cm) wide. Feature 18 Diamond style inserts for maximum traction. Driver boards fit the stock mounts. Passenger boards fit the stock passenger peg mounts on Street Glide and other models with vertical folding female mounts. For all Touring models except Street Glide you have to order Vity's passenger board mounts separately. Boards and mounts are sold in pairs. Vity's Design is Italian, reason why they offer red and green from their flag or blue from their sports outfits as an accent color.