H D Metal Casters for #7026E (Set 4) Mat Platforms * Pins are based on MSHQ BH190XL * Pins are based on the top of the board and are used in conjuction with quick clip straps (model 7007B) * Size: 72 L x 18 W * Weight capacity: 500 Lbs * Width adjustable 1 1 2 one piece stainless steel handrails Replacement Caster 3 x 1 1 4 * HD Casters Have Threaded Stem For Extra Security And Safety * All Single Wheel Castes Come With Removable Bolt And Locknut Allowing Disassemlby For Easy Cleaning And Removal Of Build Up Grime Thread Or Anything Else That Your Wheel Picks Up During Normal Usage * This Caster System Will Add Longevity To Your Casters * Swivel: Double Ball Bearing With Hardened Raceways For Extra Strength * Cover: Helps Protect Swivel Bearings * Construction: Heavy Guage Cold Rolled Steel Formed For Strength