Available in both the regular and heavy duty styles, the regular is 2" long x 0.017" thick and the more rigid heavy duty is 2 7/16" long x 0.025" thick. Stanley blades are available five per card, or 100 per plastic dispenser box. Gundlach blades are available 100 per box, with 20 packages of five blades per box, or 100 per plastic dispenser box.