Groove Cycling 18x30x7 Bottom Bearing MR18307 Ball Bearing 18307-2RS 18307-LBLU Bicycle Bearing

Label:Yes 61903-18RS Pacakge include:2pcst Bearings Size: 18mm X 30mm X 7mm Material: Bearing steel Ball Bearings 18307-LBLU

Bearings are made of Chrome Steel, each bearing has 2 sealed with rubber seals to protect the bearing from dust or any possible contamination, also bearing is pre-lubricated with grease.