4D PRO® – The Super Elastic Sling Trainer

Say good-bye to boredom once and for all: a few simple moves is all it takes to convert the 4D PRO® sling trainer into 4 highly versatile training tools.

This product will provide you with a resistance expander, an elastic rope, a conventional non-elastic sling trainer and a dynamic sling trainer that offers lots of elasticity.

Our clients

Oakland Raiders

Crunch Fitness

Milwaukee Bucks

United States Ski and Snowboard Association

University of North Carolina

Delaware Swim Team

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