Plastic Deck Roller / Simplicity 1668513SMPack Size:1Simplicity 1668513SM, Simplicity 1668513NHC 226-0151, Prime Line 7-04883, Sunbelt WL-33, Sunbelt B1WL33Simplicity 700 series, 3100, 4200, 5116, 5200, 5216, 6500, FC, FCH, GTH, LT, 5200, 6200, 6500, FCH and GTH 36", 42", 44" and 48" decksBore: 5/8 ", Tread: Smooth, Wheel Size: 2 1/2, Hub: 4 "