Come and see our amazing products. The 1800mAh power bank has an aluminum shell. It is a great gift for party, college, hospital. You also can carry it when your are running, travel, hiking, sports, etc. It has different capacities, 1800mAh, 2200mAh, 2600mAh are all possible. the price include laser engraved. If you like silkscreen, that is possible. Pls confirm with us about the packing info, stock color and exact production time before placing your order.