23/64" (9mm) Hole Size Flange Diameter: 20mm Stem Length: 21mm Black Nylon Rear Bumper Cover Push Type Retainers Compare with: Auveco # 19615, G.M. # 15153415, Car Pak # 98-7874, 987874, W&E # 2953, Barnes / Kar # 987874, Disco # 10247PK, 10247B, Crest / Midwest # CRX14542, Kent / Lawson # P15629, Winzer # 502.32402, Wurth # 150155520, S&R # 415247, Kimball / Midwest # 12600