Copper construction Built from sturdy copper to deliver long lasting use and reliable performance in a range of diving conditions. Compact and lightweight Weighs only 10 g, making it ideal for divers who want lightweight gear without sacrificing functionality during dives. Essential diving equipment Designed specifically for divers as an important addition to your diving toolkit, providing ease of use and efficient underwater performance. Hairpin bar included Includes a convenient hairpin bar to easily connect your discharge cable, enhancing user friendliness and efficiency. Use scenarios Open water buoyancy control: use for reliable inflation and deflation to maintain stable depth and comfortable diving. Travel and gear efficiency: its compact size and light weight help you pack more efficiently for trips with limited space. Quick setup and maintenance: hairpin bar facilitates fast connection of the discharge cable, streamlining setup and in water adjustments.