Alo Bend it Back Wheel-Black New! NWT Roll your spine over the wheel over to open the front and back body, relieve tension and expand rage of motion in the shoulders and hip flexors. The essential stretch and practice prop, also make a great legs-up inversion aid. 40”circumference, 12 3/4” diameter, made in China,designed in Los Angeles. Fabrication: Acrylonitrile, Butadiene, Styrene (ABS plastic) and Polyurethane