-MATERIAL: Made of industrial grade nitrile rubber (NBR)
-SIZE: Includes 32 common standard sizes from 3 mm I.D. to 50 mm I.D.
-SPECIAL STORAGE BOX: Equipped with heavy storage box, the O-rings of different sizes can be separated and placed orderly
-HIGH PERFORMANCE: Industrial grade NBR has excellent oil and UV resistance, and its super flexible structure and ultra thick wall design make it durable.
-APPLICATION: Piping, mechanical, hydraulic and pneumatic maintenance.