The Grid™: A Revolutionary Foam Roller that features Distrodensity™ Zones, Matrix Technology, and an environmentally friendly design. Being only 13" long and 5" in diameter, the sleek design of The Grid™ makes it an excellent travel companion.
GRID QuadBaller massage roller is designed for massaging/rolling the leg muscles. Product is perfect for using on calf and quad muscles - effective tool for relieving muscle tension and great help on muscle recovery. Compared with GRID massage roller QuadBaller massage roller has much more stronger construction.