All 19ga. steel ( Thicker than others ) portable box with key lock is a portable safe designed to secure a wallet, cell phone or handgun for concealed-weapon permit holders during transit. It meets TSA airline firearm guidelines. The foam interior protects the contents during transit. It also includes a steel cable which keeps the case secure when the cable is looped around any fixed object. Exterior : 9.5" x 6.5" x 1.9" Weight : 3 Ibs