[Versatile Compatibility]Securely holds cylinders or attachment accessories, preventing wear and tear on equipment and extending its lifespan. Allows for fixing cylinders or adding auxiliary tools. [Rugged Aluminum Alloy Construction]Made of strong, corrosion-resistant 6061 aviation-grade aluminum alloy, ensuring reliability in harsh underwater environments. Features an elegant black surface finish. [Lightweight and Portable]Designed with weight-reducing holes, making it easy to carry and use during diving expeditions. Allows for easy attachment of additional diving tools to enhance your experience. [Secure Connection and Customization]Multiple fixing holes and linkages enable secure attachment of diving equipment and convenient weight adjustment to suit various diving needs. [Comfortable and Easy to Maintain]Ergonomically designed for comfort during extended underwater dives. Durable construction allows for repeated use, with easy cleaning and maintenance for long-lasting performance. Specifications: Product: Scuba BCD Backplate Material: 6061 Aviation-grade Aluminum Small One Weight: 0.12kg Large One Weight: 0.75kg Small One Dimensions: 380mm x 69mm (14.96inch x 2.71inch) Large One Dimensions: 400mm x 266mm (15.74inch x 10.47inch)