The Nike Kettlebell and Dumbbell Rack - a robust, three-tier storage solution for your favorite dumbbells. Forged from robust 11-gauge steel, it stands the test of time with unwavering strength and durability. Organize your gear in style and security with Nike's formidable Dumbbell Rack. The number of dumbbell racks you need depends on the weight set you have. Here's some common dumbbell sets and the number of racks to accommodate them: RECOMMENDED RACK CONFIGURATION: 5-40 lb. dumbbell set: 1 rack 5-85 lb. dumbbell set: 2 racks 5-100 lb. dumbbell set: 2 racks (90's, 95's, 100's lb. pairs will sit on the floor) or use 3 racks 45-85 lb. dumbbell set: 1 rack 80-100 lb. dumbbell set: 1 rack