With two large tub shelves that are 2.5 inch deep, this multipurpose utility cart easily holds and hauls a wide range of items, and is designed to carry heavy loads up to 400 lbs. The tub shelves are made of a high-density polypropylene, known for its incredible strength-to-density ratio, assuring that each cart is durable without being bulky or cumbersome. The industrial 5 inch semi-pneumatic casters are puncture resistant and provide shock absorption and quiet operation while an ergonomic handle molded into top shelf make the cart easy to maneuver.