Stem Length: 11mm Top Head Size: 17 x 20mm Bottom Head Size: 14 x 28mm Blue Nylon With Metal Reinforcement Windshield Pillar, Interior & Trunk Trim Moulding Retainers Compare with: G.M. # 24405740, Auveco # 22022, Disco #18095PK, Disco # 18095B, Winzer # 502.9083, Kimball / Midwest # 13842, Kent / Lawson # 1431683, Crest # CRX26666