Triggerpoint MBI Massage Ball (03301) insoles the GRID Travel retains shape

the GRID Travel retains shape after frequent and repeated use

Includes 1-year manufacturer's warranty

2% Spandex

Are they real

no blisters

Triggerpoint MBI Massage Ball (03301) insoles the GRID Travel retains shapeThe MB1 Massage Ball provides direct deep tissue compression for fast relief of aches, pains and muscle fatigue in small areas. It can be used on any surface, so you can roll anytime, anywhere. THE MB1 Massage Ball is composed of foam and is specifically designed to replicate the feeling of a massage therapist's hands. Featuring a patented, layered construction made up of different densities, the massage ball works to break up adhesions and stimulate