Multi Size to Meet Your Needs: including 32 most commonly used sizes, from 3mm ID x 6mm OD to 50mm ID x 57mm OD can almost meet your needs All needs. For more details, please refer to our size pictures.

High Quality: Every piece of our O-ring kit is made of top nitrile rubber, heat-resistant, low-temperature/high-temperature resistant, air, water, petroleum products, mineral oil and hydraulic oil, natural gas, kerosene, silicone oil, Non-aromatic fuels and solvents, provide long-lasting and reliable service.

Wide Range of Applications: Universal O Ring buna kits, mechanic nitrile repairs, essential for all workshops and onsite service engineers. Used in pipelines, machinery, hydraulic and pneumatic maintenance, faucets, garages, workshops, automobiles, doors and windows, electrical appliances, bearings, pumps, etc.

Convenient Storage and Use: The separate housings of the metric kits organize each O-ring into different grooves by size, and all grooves are clearly marked for ease of use, eliminating the trouble of sorting and selecting the size.

Quality Assurance: Customer satisfaction is our pursuit. We have full confidence in our products. If you are not satisfied for any reason within 30 days, please return your tool kit without any questions. We also provide 7*24 customer service.