Serve Harder Training Program: Serve 10 To 20 Mph Faster In 90 Days!

This is your chance to have the best serve ever with this training that will change the way you approach your serve. Using a scientifically proven method to increase your racquet head speed and acceleration through 6 exercises.

• | Author: Joseph Correa
• | Publisher: Finibi Inc
• | Publication Date: May 17, 2017
• | Number of Pages: 68 pages
• | Language: English
• | Binding: Paperback/Sports & Recreation
• | ISBN-10: 1635316006
• | ISBN-13: 9781635316001