61800ZZ ABEC-5 Ball Bearings 10mm x 19mm x 5mm Lot of 10 Bearings Lot of 10 bearings 61800ZZ Ball Bearings ABEC-5 quality, Bearings are made of Chrome Steel, each bearing has 2 metal shields to protect the bearing from dust or any possible contamination, also bearings are pre-lubricated with grease.