Hamilton Aerospace Spring Loaded Heavy Service Swivel Caster with 8" x 2" Swivel-EAZ� Twin Wheel Black Flat 75D Tread on Aluminum Core with 1/2" Sealed Precision Ball Bearings
Bolt Hole 1: 3 3/8 x 5 1/4
Bolt Hole 2: 2 7/16 x 4 15/16
Bolt Size: 0.5
Caster Rig Type: Kingpinless
Caster Type: Swivel
Color: Platinum Powder
Wheel Color: Black Poly On Alum 
Diameter: 8
Overall Height: 10.5
Top Plate: 4 1/2 x 6 1/2
Top Plate Length: 6.5
Top Plate Width: 4.5
Wheel Face: 2