TaylorMade Speed Stik Training System 650 gram SPEED STIK overloads the swing, developing golf muscles for strength and speed Speed Meter measures swing speeds from 60 to 140 MPH delivering instant swing feedback 46" inch length promotes a flatter swing plane that corrects steep out-to-in or over-the-top swings New tapering grip area allows for a multi-compound grip that delivers maximum traction under high speeds Safety grip cap prevents slippage / Alignment Arrows allow the SPEED STIK to be used as an alignment aid while practicing