PartsSquare 20pcs Fender Liner Fastener Rivet Push Clips Retainer Fastener for Ford Mustang Package Content : 20pcs Plastic Rivets Fastener Application: Door Panel Retainer (Direct replacement, no need to modify) Size (Head/Stem Length/Stem Diameter/Fit Hole): 19.5/17.7/8mm; 0.76/0.69/0.31 inch Item condition: Brand New. Material: Plastic, Nylon