Wise No.5601 Small Utility Box is Constructed of Thick Wall Injection Molded Plastic. Patterned after the US Armed Forces Ammo Box is the toughest Storage Box you will find. Heavy Duty Hinge Pins and Locking Latch System. Recessed Carry Handle, Special Molded in Retainers to Stack Box on Box. Lifetime Warranty. Outer Dimension 15" L x 7.75" W x 6.5" H, Inner Dimension: 12" L x 6" W x 4.75" D. Lifetime Warranty.