Material: Hydrogenated Nitrile Butadiene Rubber (HNBR)
No contact corrosion, no pollution medium, no abnormal smell, environmental friendly
Excellent quality box set of 270 O-rings seals in 18 different sizes perfect for most jobs
Applications: automobile, electrical appliance, mechanical, industrial, construction, household, and other fields
WHAT YOU WILL GET: 18 different sizes 270pcs O Rings seals (all-in-one carrying case)