MetroMax I open grid 3 tier Polymer utility carts manufactured by Metro. These carts designed with removable polymer open grid drop mat shelves with 304 stainless steel corners. These carts are supplied with 3 open grid polymer shelves, 4 all polymer posts with antimicrobial Microban and polyurethane Wheels with polymer horn ans SS axles. 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.