Sure-Grip Axles, etc for Quad Skates Crazy Nuts $8.00 Sure-Grip Cushions (Sold Each) $1.00 Jump Bars for Sure Grip Plates (Pair) $5.00 LooseBall Bearing Kit $30.00 Kingpins & Action Bolts for Sure-Grip Plates (Each) Nuts & Bolts for Quad Skates Pivot Inserts for Sure Grip Skates (Set of 4) $2.25 Conversion Kit - Single Action to Double Action $65.00 Trucks for Quad Skate Plates (Sold Each) Hanger for Sure-Grip Plates (Sold Each) $10.00, 2/$18.00, 3/$24.00, 4/$28.00