Specification: Product Name Plastic Rivet Material Plastic Color Black Head Diameter 19mm/0.75 inches Stem Length 17mm/ 0.6 inches Fit Hole Diameter 9×7.3mm/0.35×0.28 inches(L*W) Totle Length 19mm/0.75 inches Package Content 30PCS(+/-2%) x Plastic Rivets Descriptions: · Rivet post pressure expands legs for fast and permanent fastening. Used widely for car fender, bumper, door or other car suface. · Push in type, are made of the plastic material, fit 9mm diameter hole. .