No Starter Cord Needed! Our Winner"s Roll ‘n Spin Spinner incorporates our new Auto Start feature with an LCD counter to make your exercise routine even easier, No messy strings, just wind it up by pulling it back, and we"ll generate enough momentum to get you going, The counter will keep track of how fast you"re spinning our Spinner, or how long you"ve been spinning it, Comes in an exclusive, hard black plastic shell, Regular use of NSD Spinner gives you the following:, POWER-Regular use of the NSD Spinner will strengthen the muscles in your forearm and wrist, giving you the strength and power you need in your sports and daily activities, SPEED-NSD Spinner also maximizes the use of the explosive muscles in your forearm and wrist, allowing you to increase the speed of your arm motion, resulting in quicker, more powerful swing or throwing motion in whatever sport you play, CONTROL-The NSD Spinner also trains the muscles in your forearm and wrist for fine motor control and coordination, because to spin the Spinner at 10,000+ RPM requires precise timing and fine movement, Using the Spinner regularly will improve control over wrist and arm muscles for delicate tasks such as playing a musical instrument, or anything requiring surgical precision of your hand, Power, Speed, Control, These are the attributes that any athlete desires, And the original NSD Spinner will deliver them, Go ahead, give it a spin, For fourteen years NSD spinners have helped golfers, tennis players, trainers and athletes alike, With your arms and wrists conditioned to tackle and control the most rigorous sports activities, you can also overcome the daily grind of repetitive stress induced injuries at work, But most of all, , , IT"S FUN FOR EVERYONE!, A minute a day is all it takes, Give it a spin!, SKU: NSDP017