1. Made of high quality material, durable to use. 2. Easy operation, wear-resistant, and convenient to carry. 3. 42cm x 45cm, it suitable for storage the 40cm studio tent box. 4. It can be used for the weight of the lamp stand and the balance stability of the lamp holder and the tripod, which is especially suitable for some outdoor lighting fixtures. 5. Great accessory for tripods and light stands and other photography equipment.