In 
Out13x19x4 Rubber
Product Overview
NOTICE: Seal is Black
The Halo series of bearings are a high quality steel/chrome bearing with rubber seals. These bearings have been tested and proven by many racers.
13x19x4 Revolution bearing by Avid Racing Concepts is the standard bearing for Xray 808 and Serpent Cobra 811. Check your manual for the correct size for your vehicle if you are not certain.
