Classic military style and stackable design Makes the ammo box gaining popularity, and all steel construction, keep the storage dry and safe. Airtight Protects your valuables from dirt, dust and debit disputes. The rubber gasket seal provides reliable protection. Steel Stronger and stronger than cheap plastic cans. All steel construction means high quality build and durable product. Waterproof Your personal belongings will be well protected from water. This can keep things dry even when completely submerged underwater. Characteristics: -Model 30 rounds: Net weight: 1.7kg External dimensions: 175*275*95mm Internal dimensions: 168*255*89mm Manual measurement, 2-3mm error is within the normal range. Material: high quality steel