Features tire pressure gauge, LED flashlight, glass breaker, flashing emergency light, seat belt cutter, tire tread depth meter, tire pressure release, lanyard, and magnet for easy hanging. Pressure range is 5.0-99 psi. Requires 2 AAA batteries (included). Measures 7-1/2" x 2-1/2" x 1-1/8". Clamshell.