5 Pcs Double Sealed 3 x 10 x 4mm Deep Groove Ball Bearings 623Z
This is a popular size that could be used in many RC Cars and Trucks or any application that uses this size 3mm x 10mm x 4mm.Bearing is made of metal, each bearing has 2 metal shields to protect the bearing from dust or any possible contamination, also bearing is pre-lubricated with grease.