MetroMax Q open grid 3 tier Polymer utility carts are manufactured by Metro. These carts designed with 3 removable polymer open grid drop mat shelves with release and lock lever, 4 epoxy coated shelf frames and 4 Polymer casters. The open grid drop mats can be easily removed and cleaned. Microban antimicrobial is built into the shelves and the posts protects the cart and the content from bacteria, mold, mildew, and fungus. These carts can hold up to 900 lbs. These carts are great addition to any area which requires aggressive cleaning such as clean rooms, laboratories and restaurants.