The Hillman Cassette C 4R Universal Single Sided Blank Key for GM Buick is a brass key blank with a black and silver color finish. It has a length of 2.000 inches, height of 3.75 inches, and width of 2.300 inches, with a weight of 0.130 pounds. The key has 5 pins and is designed by the manufacturer Hillman Group RSC. It comes with a California Prop 65 Warning stating that it can expose you to chemicals, including lead and lead compounds. This key blank is ideal for access control equipment and key management supplies.