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Features：
Full double ball raceway hardened with heat treat process for better performance and greater durability.
Wheels feature sealed precision ball bearings to provide a smooth,quiet and maintenance free ride.
Fully integrated thread guards prevent the pick-up of strings.
Non-marking.
Office:+86(020) 32853807
E-mail：marketing@colsonchina.com
Fill in this quick form so we can get rolling on your mobility solutions!