Material: Made of high quality PE plastic, durable and not easy to deform. Function: These Rubber Hex Nut Covers are good for protecting screws from rusting outside, water, dust, etc., help to prolong the service life of screws and help to decorate your furniture. Application: Can be used as high-strength fasteners for machinery, furniture, vehicles, etc. With a Box: Comes with a box for easy storage and transport.And can prevent the nut covers from missing. 145 Pcs Rubber Hex Nut Cover: 15 X M12 Dome Nut Covers; 20 x M10 Dome Nut Covers;10 x M8 Dome Nut Covers; 20 x M6 Dome Nut Covers; 30 x M5 Dome Nut Covers; 50 x M4 Dome Nut Covers.A total of 145 pieces. Note: It does not include other things, the color is based on the first picture, and the other pictures only show the effect Due to the differences between different monitors, the picture may not reflect the actual color of the item. Due to manual measurement. Please allow deviation. Thanks!