Features and Benefits All steel construction Base measures 15 3/8&quot; X 18 1/2&quot; Mounts From 8&quot; to light truck tires Wheel rest plate measures 7 1/2&quot; diameter X 3/16&quot; thick 42 lbs. for easy transporting Manual tire changer mounts and dismounts a full range of tire sizes from 8&quot; to those found on light trucks.