25/64” (10mm) Hole Size Flange Diameter: 20mm Stem Length: 16mm Black Nylon With Metal Insert Bumper Push Type Retainers Compare with: Auveco #21173, Honda # 91506-S9A-003, 91506S9A003, Car Pak # 99-8705, 998705, Crest / Midwest # CRX20604, Clip Lizard # 10413, Disco # 10955PK, 10955B, W&E # 3246, Kent / Lawson # P85253, Winzer # 501.1915, Wurth # 150121173, Kimball / Midwest # 13803, PID # 841213059184, 841449121884