Specification Durable Steel Construction 15-3/8" x 18-1/2" Base 7-1/2" Diameter x 3/16" Thick Wheel Rest Plate Mount and demount a full range of tires from 8" up to light truck Portable Tire Changer Proline Change tires at a fraction of the cost! No expensive 220V power hookups or pneumatic lines. Handles all tires from 8" to 16" light truck (7.5 x 16 and flotation tires up to size 12.5L16). Use in the shop or on the farm--you can even mount tires at the jobsite. All steel construction. Changes tires which have a center hole of larger than 1-5/8" or a removable center hub. Includes bead breaker/tire iron/lever bar Locking collar securely holds the wheel while mounting / dismounting tire Base has 4 predrilled 1/2" holes for mounting Dimensions: 15" x 18" base, 7-1/2" diameter x 3/16" thick wheel rest plate Color may vary GOOD LUCK !!!!