Dyna-flex Pro Gyro Speedmeter Only

Whether its running a race for time, keeping track of your batting average, or knowing your best round of golf -- we all love keeping score.Thats why Dynaflex now offers a NEW computerized Speed Meter digital counter option for your Pro Plus or PowerBall Gyro modelsIt snaps easily to the outer shell, and lets you know exactly how FAST you are really spinning your gyro.