You are buying twenty five (25) NOS Auveco fasteners. They are general purpose (universal) steel push in moulding clips that can be used on various years and models of Buick, Cadillac, Chevrolet, Oldsmobile, Pontiac & GMC vehicles. This style clip was used on many 1930's, 1940's & 1950's vehicles. They have a .480" x .500" (approx 1/2" x 1/2") head and push into a 1/4" diameter round hole but will push tightly into a 3/16" diameter round hole. The clip is .590" in overall length and a .050" wire diameter. The push in stud is centered on the head. The head is slightly curved (please see photos). Please note that these clips are NOT for any specific vehicle or application. Please compare your application to the photos and sizes that we have provided.