Adjustable for use with D and E cylinders * Top and bottom clasps easily attach for secure fit to wheelchair * 2 carry handles * For use with most manufacturers wheelchairs * Made of durable easy-to-clean nylon * Size: 26.5 x 7.5 x 4.75 * Warranty: 90 days * Positions a 26 (66 cm) long tank off-center behind the wheelchair back to avoid interference with the wheelchair user