1. Complete suit: This set of sealing gasket go well with features a sort of sizes from M6 to M30 to meet the purposes of users for different sizes and types of sealing gaskets.2. High high quality materials: Our gaskets are product of positive materials, which might withstand put on and corrosion, and feature nice compressive power and durability.3. Easy garage and carrying: All gaskets are positioned in a set of gods, which is handy for labeled garage and carrying, averting loss or confusion, and handy for users to use.New and excessive qualityMaterial: Nitrile rubberColor: red/blak/blueSize:M6-M30Package Included:100/245PcsNote:As different computer systems display varied colors, thanks to your understanding, the particular product coloration may be barely diverse from the image.