Deep Groove Bottom Bearing 6903-18RS 18x30x7 18307-2RS Ball Bearing Bicycle Bearing 18307-LBLU

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

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.