The Standard Hoofjack Base will accommodate a pony up to a small draft or draft cross (hooves up to a size 7). If the hoof is less than 7 3/4" at its widest point you will want to order the Standard or Medium Hoofjack. The Hoofjack base is shipped with 2 Magnets and screws and Tension knob. Some assembly required. Post and Cradle sold separately.