Sonic Extender Axle Kit - 8 Pack 2014 - Empower yourself with the handy Sonic Extender Axle Kit! This universal upgrade axle kit replaces the factory hardware that comes with your skates and fits all sorts of different width skate frames; simply partially thread bolt to fit wide frames or thread completely to fit narrower frames. Inside this kit, you will receive 8 aircraft aluminum spacers, 8 high tensile steel bolts (1/4in diameter) and 1 long brake bolt. . Bearing Grade: Performance, Model Year: 2014, Product ID: 7505, Model Number: 10070, GTIN: 0756395100701