The Momentus Driver is a uniquely weighted swing trainer whose weight is evenly distributed throughout the entire length of the shaft. Its design allows a golfer to gain a feel for swinging the golf club on a balanced and proper swing plane. David Duval uses the Momentus 25 to 30 times a day to develop consistancy, strength, flexibility, and clubhead speed. The momentus driver is a fantastic way to train, but should not be used to hit balls. Please note the wide variety of drivers below and be careful when making your selection. Includes Momentus training video. Availability: Usually ships the next business day. MOMDRegular price: $109.95GTA cost: Select: Tour 40in 44oz RH std gripTour 40in 44oz RH form gripTour 40in 44oz LH std gripMens 40in 36oz RH std gripMens 40in 36oz RH form gripMens 40in 36oz LH std gripLadies 38in 32oz RH std gripLadies 38in 32oz RH form gripLadies 38in 32oz LH std gripIndoor 35in 40oz RH std gripIndoor 35in 40oz LH std grip (c) GolfTrainingAids.Com - since 1985