327 O-Ring, Viton, 90A Durometer, 1-3/4" ID, 2-1/8" OD, 3/16" Width, Black (Pack of 10) Baseus Contains 240 servings per bottle

Contains 240 servings per bottle

and it must be kept dry，then the surface of the product can be heated with a hair dryer

and the speed and brightness of nebula changes can be adjusted

model number: G111

Details: NOTE: This magnifying glass is designed with high definition optical white glass lens and full metal frame

327 O-Ring, Viton, 90A Durometer, 1-3/4" ID, 2-1/8" OD, 3/16" Width, Black (Pack of 10) Baseus Contains 240 servings per bottleMade of Viton (fluorocarbon elastomer) for use with a variety of chemicals and fuels Durometer (hardness) of 90A Round cross section provides a seal between cylindrical overlapping surfaces For use across a wide temperature range from 15 degrees F ( 26 degrees C) to 450 degrees F (232 degrees C) Meets standards defined by Aerospace Standard AS568A