4" x 2" Swivel Caster Kinpinless V-Groove Ductile Steel Wh Brake&Rigid 1500lb ea. Below is more information and specs on this product. Style: (2) Kingpinless Swivel Caster with Brake (2) Rigid. Top Plate: 4" by 4-1/2". Bolt Pattern: 3" by 3".
Quantity: 1 set of 4. Part Number: 504KPVGDSB and 504VGDSR.