The Fitness First 3 Tier Commercial Horizontal Hex Dumbbell Rack is a great piece to add to any gym for your storage needs. This 3 tier storage system is made of solid 14-gauge steel design. It is designed to hold dumbbells, kettlebells or fitness balls. It is black in color and can hold 12 fitness balls, 9 sets of 50 plus pounds dumbbells or 12 sets of 30 pounds and under dumbbells.