In this video, Rob Riches teaches you how to improve your vertical jumps with a box, and also explains how to add weight to the jump. Learn how to jump higher with your body correctly positioned.

☞ MAKE SURE TO SUBSCRIBE TO OUR CHANNEL! ☜

Check out our online store: https://prozis.com/3JS

Follow us for exclusive content and discounts:

➤ Blog: https://www.prozis.com/blog
➤ Facebook: https://www.facebook.com/Prozis
➤ Twitter: https://twitter.com/prozis
➤ Pinterest: https://www.pinterest.com/prozis/
➤ Instagram: https://instagram.com/prozis