The O Ring Assortment, SKU ORKIT, includes 382 Buna-N O Rings with a 70 Durometer hardness, designed for durability and reliable performance in various automotive and industrial applications. This set features 30 standard AS568A sizes, providing flexibility for diverse sealing needs. The assortment includes 20 pieces each of sizes 006 through 012, 13 pieces each of sizes 110 through 116, and 10 pieces each of sizes 210 through 222, along with 7 pieces of size 325, ensuring you have the right size available for any job.