The rubber protective covers are an essential accessory for anyone looking to extend the lifespan of their equipment. By preventing wear, these screw caps help to maintain the functionality and appearance of your tools and machinery. They are easy to use and can be quickly applied to any exposed thread or end, providing immediate protection. Features -Inner diameter specification: 7.0mm, 10mm, 10.5mm, 20mm, 22mm -Color:Black -Material:Rubber -Size:2.90X2.20X2.20cm/1.14X0.86X0.86in -Strong rubber: made from rubber, these screw caps offer excellent resistance to wear, providing reliable protection -Effective sealing: these screw caps ensure a tight fit, preventing debris, water, and other impurities from entering and damaging your wire ends -Userfriendly: easy to use design, screw thread protector allows for quick installation, making maintenance tasks more efficient -Multiple sizes: with a variety of sizes available, these screw caps can fit different thread dimensions, catering to diverse needs -Wide usage: ideal for use in construction, engineering, and home improvement, these screw caps protect threads and extend their service life Package list: 12 x screw thread caps (Φ7.0mm) 12 x screw thread caps (Φ10mm) 8 x screw thread caps (Φ10.5mm) 8 x screw thread caps (Φ20mm) 8 x screw thread caps (Φ22mm)