1.Solid and Material:The portable carrying case is made of ABS, aluminum alloy and foam inserts, solid and durable, resistant to impact and not easy to crack, which ensures a 2.Double Protection:The aluminum tool case is equipped with sturdy crash- resistant shell and shockproof inner material, able to withstand large impact without being damaged and effectively protects your stuff in great 3.Double Security Lock Design:This aluminum carring case comes with 2 lockable hinge to prevent internal tools from accidentally falling out while being carried, keeps your valuable tools . The 4 corner beads protect the box and your items from falling 4. & :The aluminum flight box uses waterproof material on the surface, double groove in the closing of the carrying case effectively prevents water or rainwater from entering the case, keep your items dry and clean