COLSON 2 SERIES WHEEL 2.00004.944 - 4 X 1-1/4 POLYURETHANE ON POLYOLEFIN 3/8 DELRIN BUSHING - MAROON UL STYLE""MARGIN-TOP0PX; PADDING-TOP 5PX; PADDING-BOTTOM 5PX;"" MAROON POLYURETHANE TREAD WITH A GRAY POLYOLEFIN CORE TREAD IS MECHANICALLY BONDED TO CORE TO HELP PREVENT DEBONDING DELRIN BUSHING IN WHEEL STAINLESS STEEL SPANNER BUSHING TO 3/8"" AXLE SIZE