Keyring micro-tools are made from 420 stainless steel, and designed for a variety of tasks. Perfect for anyone on the go, and TSA-compliant for safe travel. Size: 2 3/8" x 1 1/2" Material: 420 Stainless steel. 11 Functions: 8 different hex wrenches,phillips screwdriver and flat screwdriver, bottle opener. Made in China.