1. Complete suit: This set of sealing gasket suit features a type of sizes from M6 to M30 to satisfy the needs of users for different sizes and types of sealing gaskets.2. High high quality materials: Our gaskets are product of positive materials, which can withstand put on and corrosion, and feature nice compressive strength and durability.3. Easy garage and carrying: All gaskets are positioned in a collection of gods, which is convenient for labeled storage and carrying, keeping off loss or confusion, and handy for customers to use.New and excessive qualityMaterial: Nitrile rubberColor: red/blak/blueSize:M6-M30Package Included:100/245PcsNote:As various computers exhibit different colors, thank you to your understanding, the particular product coloration could also be slightly different from the image.