- Chrome Vanadium- Designed to ease the operation of pulling the balancer pulleyContents:1 Pc: York3 Pcs Bolts: 2-1/2" x 3/8"-24NF 3 Pcs Bolts: 2-1/2" x 7/16"-16NF1 Pc Pressure Screw: 5" x 9/16-10NF1 Pc Centering AdapterWei