Swivel Disks help players feel the optimal body rotation to generate powerful topspin groundstrokes and also for the timing and rhythm for serving! Each 11" slip resistant Swivel Disk has dozens of steel ball bearings to ensure a smooth circular glide. Some coaches call the movement experienced with Swivel Disks the "figure eight" rotation. Whatever you call it, players will gain a quick feel for naturally opening the hips to gain more power from the body's core. A second benefit is increased loading of ground forces, the result of improved balance.
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Swivel Disk - TE275 - Tennis Court Equipment Ball Machines
100% Satisfaction Guarantee: At Mansion Tennis, we want to be sure that the item you choose is the right one for you. Within 30 days of delivery of your order, you may return any merchandise purchased from Mansion Tennis in its original condition with your email order confirmation or packing slip. Restocking fees may apply. On items over $275 shipping within the US, we will even arrange free pick up or pay for returns shipping.