Obusforme Ultraforme Premium Backrest Support Black Large
UF-BLK-LG Size: Large Features: -Backrest support.-Shifts spine into positive neutral curve removing pressure from the lumbar discs.-Moves should blades upward reducing slouching and even improving respiratory capacity.-Scientifically proven to relieve back pain.-Tested at Stanford University, UCLA, and the Mets Clinic.-Made in USA. Dimensions: -Small: 27.5''H x 15''W x 4.17''D.-Medium: 29''H x 15''W x 4.5''D.-Large: 30.5''H x 15''W x 4.9''D. Warranty: -Complete medical provides lifetime for frame and other parts 1 yr limited warranty.