DESIGN: Heavy-duty, durable steel for long-lasting performance Angled and offset shelves allow for easy access to all dumbbells Open tray design with 4.5 inch gap allows for easy access to pick up dumbbells 1 inch shelf lip keeps most cast or rubber dumbbells secure Pre-drilled base holes allow for dumbbell rack to be anchored to the floor. Hardware not included. Maximum Weight Capacity: 400lbs per tray for up to 1,200 lbs. of storage Designed for commercial or residential use Limited Lifetime Warranty on Frame & Welds