Product name: plastic rivet; Material: plastic Color: black; Max. Diameter: 14mm/0.6" Stem length: 18mm/0.7"; Suitable hole diameter: 7mm/0.3" (not including pin) After expansion Height: 20mm/0.79"; Net weight: 12g Rivet pressure expands legs for quick and permanent fastening. Widely used for car , bumper, door, side skirt or other car surface. Insert type , made of plastic, suitable for 7mm diameter hole. Consists of two parts (male and female). Insert the female part into the hole, press the male part down, closed position. To separate the two parts, unhook the male part with the tool under the head. package content: 20 plastic rivets Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The allowable measurement error is +/- 1-3cm.