These wire grommets are made of high quality rubber, with different sizes meet your different needs. Heat-resisting, mineral oil-resisting, wear-resisting, they are convenient and reuseable. Features: These wire grommets are made of high quality rubber. 7 different sizes, variety of thickness and size are all in one box, very convenient to use. Heat-resisting, mineral oil-resisting, wear-resisting. Convenient and reusealable, easy to use. All comes in a handy storage case and assorted in different sizes. Protect wiring and cables in metal junction area. It can be used to replace worn or broken grommets in leaky faucets, hoses, etc. Specifications: Material: rubber Color: black Package size: 12 10 3cm / 4.72 3.94 1.18in Item weight: 200g / 7.05oz Package weight: 277g / 9.77oz Detail Content: 50 pcs. 7.14 mm 40 pcs. 9.53 mm 30 pcs. 12.07 mm 20 pcs. 15.88 mm 10 pcs. 19.05 mm 10 pcs. 22.23 mm 10 pcs. 25.40 mm Package List: 170 Rubber Gro