This is a new set of Danmar #938 clamp-on Hoop-mounted bass drum spurs (pair — left and right). They are in the style of Slingerland and Ludwig vintage kits, and mount to the rim of the bass-drum so no drilling is required. The spurs are pointed rubber tips and are 10-1/2″ in length. They will fit bass drums that are 20″-28″.