Portable Power Jumper

The Lifeline USA Portable Power Jumper is a fairly recent development in vertical jump training. Its unique and clever design allows the trainer to quickly incorporate the many benefits of band training into their program. It is something we use extensively in our own training and recommend you do too.
... In terms of making gains quicker, yes absolutely [it does work]. We are big advocates of its potential. It is our opinion that no other device allows you to create the kinds of efficiencies in your workout like the Power Jumper does.
Read the full review.
- Jack Woodrup from VerticalJumping.com