PartsSquare 100pcs Fender Liner Fastener Rivet Push Clips Retainer for Buick Cadillac Chevrolet GMC Oldsmobile Pontiac Package Content : 30pcs Plastic Rivets Fastener Application: Door Trim, Emission Controls-L4, E.C.M. Module & Related Parts Retainer (Direct replacement, no need to modify) Size (Head/Stem Length/Stem Diameter/Fit Hole): Bottom:24 Top:23/Stem:25 Over All28/8mm; /Bottom:15/16 Top:29/32/Stem:1 Over All1 1/8 inch Item condition: Brand New. Material: Plastic, Nylon