826pc O-Ring Set: Orion Motor Tech's O-ring set includes 407 SAE O-rings and 419 metric O-rings in the 32 essential sizes; SAE O-rings range from -006 to -226 and metric O-rings cover inner diameters from 3 to 50mm and outer diameters from 6 to 57mm Built to Last: Each piece of our huge O-ring kit is constructed from top-class nitrile rubber for long-lasting and dependable service, resisting heat, corrosion, and wear Wide Application: This O-ring kit with picks and hooks is designed to meet all your needs when repairing cars, faucets, pipes, hydraulics, pneumatic machines, and more Easy Organization: The separate cases for the SAE and metric sets organize every O-ring into different slots by size, all clearly labeled, for easy use and even easier storage and transport between jobs 4 PC. Pick & Hook Set: Our SAE & metric rubber O-ring assortment kit features a straight pick, a full hook, a 90-degree hook, and an angled hook, making your repair projects easier and more efficient than ever This universal metric and SAE O-ring kit by Orion Motor Tech provides the gear you need for a wide range of American and foreign products and applications including motorcycle and car repair, plumbing, machining, and hydraulic and pneumatic work. The 407 SAE and 419 metric O-rings cover the 32 most commonly needed sizes: The 407 SAE O-rings range from -006 to -226 in size and the 419 metric O-rings cover inner diameters from 3 to 50mm and outer diameters from 6 to 57mm. Every single piece is made of top-of-line nitrile rubber for exceptional oil, heat, corrosion, and wear resistance. Separate cases with built-in slots and colored labels are included for easy organization and convenient use of both O-ring sets. With this SAE and metric O-ring assortment by Orion Motor Tech, your repair work has never been easier!