High Quality: The nut cover and the transparent box are made of high quality plastic, which is extremely hard, durable and not easy to deform. Multiple Models: This product has a variety of models, including M4, M5, M6, M8, M10 and M12. Different models can meet your different needs and are very suitable for daily life. Easy to Carry: All different kinds of nut caps are neatly stored in the plastic box, the nut caps in the box are stored separately, not easy to mess up, easy to carry and use. Multifunctional : These rubber hex nut covers can well prevent the screws from rusting, water, dust, etc. Help to extend the life of screws and decorate furniture. Widely Used: Nut covers can be used for high tensile fasteners, mechanical fasteners, furniture fasteners, automotive fasteners and automotive castings. SpecificationsFeatures 1. Can be used for high strength fasteners, mechanical fasteners, furniture fasteners. 2. M4, M5, M6, M8, M10, M12, more models, more sizes can meet your different needs. 3. Well packed and sorted in a resealable transparent box for easy storage and transportation. 4. Use the wrench to fix the main screw when disassembling, it is not easy to slip, mainly used for rough and simple parts. Packaging 50 * M4 nut cover 30 * M5 nut cover 20 * M6 nut cover 10 * M8 nut cover 20 * M10 Nut Cover 15 * M12 Nut Cover Reminder 1 . Due to manual measurement, please allow 1~2cm error. Thank you for your understanding. 2. Monitor calibration is inconsistent, item color shown in photo may be showing slightly different from the real object. Take the real as the norm.