Features
- Increase your vertical jump!.
Product description
Jumpsoles are the world's most popular frontal training platforms which attach to your own shoes. By training with Jumpsoles you will build up important fast twitch muscle fibers in the lower leg. Jumpsoles will increase vertical jump 5 to 10 inches, and decrease time in the 40 yd dash by .2 seconds or your money back! Comes complete with training manual and video.
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