[MATERIAL]: Made of industrial-grade nitrile rubber (NBR)
[SIZE]: Includes 32 common standard sizes from 1/8″ I.D. x 1/4″ O.D. to 2″ I.D. x 2-1/4″ O.D.
[SPECIAL STORAGE BOX]: Equipped with a 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.