The Drumometer Model II measures a drummer's technical accuracy, hand or foot speed, and endurance by counting the total number of strokes a drummer can play within a preset time (1 to 900 seconds). It's a very progressive practice tool to help develop a relaxed playing style, strengthen endurance, and improve your sense of timing. The Drumometer is an effective teaching device for any drum instructor as students have a tangible goal to surpass.Y...