These are the handheld rollers that provide an increased range of motion when stretching. Using patented ball bearing technology, they secure around the hands with hook-and-loop fasteners and provide the palms with a rolling surface that gently glides across the floor. Constructed from durable ABS, the weighted rollers support up to 300 lbs. each and enable one to perform fluid rolling movements that help enhance one’s strength, flexibility, and balance. A free app provides users with techniques and poses that target specific muscle groups including shoulders, arms, and back. They are lightweight and compact for convenient transport and storage. Can also be worn on the feet for a full-body stretching routine. Includes knee mat and carrying bag. 6 1/4" L x 5 1/2" W x 5 1/4" D. (4 lbs.)