8 Inch Pneumatic Wheel - Swivel Gate and Ladder Caster - Service Caster Brand

Spring Loaded Swivel Caster for Gates and Ladders Air Tires for Rough Terrain Plate Size: 3-3/4" x 5-3/8" Six Bolt Hole Slots for 3/8" BoltsYou may also like 4 Inch SS Nylon Wheel Swivel 1-7/8 Inch Expanding Stem Caster SCC.