Place dumbbells to prevent dumbbells from rolling and protect your floor from bruising. A good partner for dumbbells. Put it on the shelf, on the desk, look good, remind yourself to exercise at any time. It is made from material for long time and durable use. It has a simple design, but very practical in use, giving you a good using experience. Also can be a good gift choice for your friends who like fitness, they will like it. colour: black Material: plastic Size: 146mm x 40mm x 40mm Package Contents: 30 x Dumbbell Racks Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.