Height and width adjustments allow this rack to work with different length and width hanging mats up to 72? length. Constructed of 1.5? and 1.25? square steel tubing with silver powder coated finish. Holds up to 50 - 48 inch; or 32 - 7mats or a combination of both at the same time. Equipped with 4 non-marring polyurethane swivel casters; 2 locking. This product is manufactured in China.