Worth your choice: This aluminum suitcase is stylish and durable. With reinforced corner protection to protect the briefcase from wear and tear. Ergonomically designed handles ensure the box is comfortable and practical It has a pair of locks with keys, and if you end up storing valuables in it, you can lock the toolbox to keep it safe. Product name: Transport box (empty box, empty box + foam) Material: aluminum alloy color: gray size: The internal dimensions of 400x230x120mm are 380x210x110 (35 + 75) mm and the weight is 1.8kg; The internal dimensions of 500x280x150mm are 480x260x130 (35 + 95) mm, and the weight is 2.4kg; The internal dimensions of 560x300x160mm are 540x280x145 (35 + 110) mm and the weight is 2.8kg. Product packaging: Shipping box * 1 prompt: 1. We measure manually, there may be 1-3mm error, please refer to the actual product. 2. Delivery time is usually 15-25 days. If you have not received the purchased product within 30 days, please contact us in time and we will try our best to solve it for you.