Description: Material: This 12L diving cylinder backplate is made of premium nylon and plastic, ensuring its longevity and reliability during your underwater adventures.Size: The backplate of the diving tank backpack measures36cmx26cm/14.17inchx10.24inch, providing a comfortable fit for most divers. Widely used in diving, underwater production fields, etc..Design: Featuring a no airbag construction, this simple 12L cylinder backplate unit offers an almost weightless feel when worn underwater. It's not a regular BCD buoyancy but is easy to remove and has no buoyancy, making it suitable for those who don't need buoyancy control or are diving in certain special environments.Functionality: This scuba tank back holder can be connected to the regulator and gauge on the cylinder, allowing for very relaxed and flexible movements with hardly any feeling of wearing equipment. Adjustable: The dive tank backpack is designed with adjustable strap for different specifications of gas cylinder, convenient using. Specification: Material: Nylon Plastic Size Chart: 36cmx26cm/14.17inchx10.24inch Package Includes: 1 Dive Tank Backpack