This Cajon Clave Block is an easy-to-attach accessory that provides a sharp cutting sound to your cajon percussion rig. Simply attach the block to your cajon using the accompanying 3M Dual-Lock Tape strips to add a new dimension to your playing. Made of prized Shorea wood and featuring a spring actuated wooden beater, the Cajon Clave Block is played by simply striking the wooden beater with your hand against the fixed side of the block, producing a beautiful clave sound.