20mm x 31mm Head Size Receives 10mm Ball Stud Size Hole Size: 14mm x26mm Black Nylon Tail Light Grommets Compare with: Auveco #20962, Chrysler # 55156879-AB, 55156879AB, Car Pak # 99-8623, 998623, Barnes / Kar # CP99-8623, Kent / Lawson # KT14292, Disco # 10451PK, 10451B, Crest / Midwest # CRX25727, Wurth 150120962, S&R # 290000, Kimball / Midwest # 13875