This is a replacement set of two Arrma 15x21x4mm Ball Bearings, intended for use with 6S BLX Felony and Infraction kits. These high-quality Rubber Shielded Ball Bearings make an ideal replacement part for your ARRMA vehicle.
 
Features:
Premium ball-raced bearings for ultra-smooth operation in all conditions 
Precision manufactured for fast and easy fit and consistent servicing
Manufactured to consistent tolerance for safe and secure assembly 
High-quality rubber shields for enhanced protection against the elements 
Keeping dirt, water, and dust out, and lubrication in, means more time bashing and less time wrenching
Specifications:
Inside diameter: 15mm
Outside diameter: 21mm
Thickness: 4mm
 
Includes:
(2) Ball Bearing 15x21x4mm