Wagner 4" caster 2 fixed 2 swivel 2-3/8" x 3-3/8" hole 4 caster wheels, 2 fixed, 2 swivel. Black plastic wheel, plate is 3-1/8" x 4-1/8", bolt holes on plate are spaced 2-3/8" x 3-3/8" apart. (2 sets were available at time of listing, # 5173) Shipping will be added to your bid. Click on tab for shipping estimate to your zip code. Terms Conditions: California Residents please add sales tax. Item will normally be shipped UPS ground. We do ship some items internationally, please inquire. A Handling charge may be added for international shipments. All sales final with no warranties unless stated otherwise. Item 5112, 5173