6"Dia x 2"Wide Grey Non-Marking Rubber on Plastic Wheel with Stainless Roller Bearings set in a Stainless Swivel forkWeight Capacity = 500lbs per unitOverall Height = 7-1/2"Uses The 4" x 4-1/2" Top Plate
Stainless Top Locking Brake Stainless Total Locking Brake