Ultra-hard ceramic balls: Delivers faster acceleration and higher top speeds than steel bearings
Removable rubber shields: Allows easy cleaning and maintenance for extended bearing life
High-speed nylon ball retainer: Increases strength and speed by preventing debris entry
Corrosion-resistant materials: Withstands dirt, heat, friction, and moisture for reliable performance
Skate-rated clearances and tolerances: Ensures optimal performance and durability for demanding skaters
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BONES SWISS CERAMICS
Bones Swiss Ceramics are in a class by themselves. If you want the best there is, this is it. The ceramic balls are much lighter, harder, stronger, waterproof, and longer lasting than the finest steel balls. Made in Switzerland.