Niteangel 11.8-Inch Acrylic Wheel - Consists of a diameter of the 11.8-inch running drum & a wide standing base. 

The running track of the wheel is around 3.5-inch in width.

Silent Dual-Bearing Exercise Wheel - High-quality dual-bearing mechanism design brings them a noiseless running wheel.

Comfort & Adjustable Height design- 11.8 inches wide running drum offers a comfortable & flat running pose without a bending the back. 

The height of the wheel drum is variable, you can adjust it to fit your individual needs and wishes of the height of the bedding used