5x10 Rubber Sealed Ball Bearings (10) 5x10x4 MR105-2RS Includes Ten (10) High Speed Precision Steel 5x10 Ball Bearings. These bearings are perfect for any applications where 5x10x4mm MR105 ball bearings are required. Direct Replacement For: Arrma AR610002, Associated ASC25237 ASC91560, Axial AXA1218, ECX ECX1015 ECX0922, HPI B021, Kyosho KYOBRG001, Losi LOSA6937 LOSA6954, Mugen MUGE602 MUGE602/1 MUGE2601-1, Redcat RERH008 RERBS903-086 RER02139, Tamiya 1050, TLR6932, Traxxas TRA5115 Advantage Ball Bearings are perfect for a variety of applications including: RC Cars, RC Helicopters, Bicycles, Fishing Reels, Robots, Spinners, Inline Skates, Skateboards, Scooters, Tools, Machines, Vacuums, Electric Motors, Nitro Engines, Drones, Yo Yos, and more! Rubber Sealed Ball Bearings have maximum protection, and are ideal for dusty or dirty environments. They protect well against exposure to dust, dirt, and moisture, which can destroy bearings. Advantage Racing Product Bearings have been run by some of the fastest RC Car Racers in the world and have won multiple ROAR US National Championships. Over 250,000 bearings have been sold to satisfied racers all over the world!