This is the Zeagle Deluxe Harness for Backplate Features: Four stainless steel D-rings Can be used with any Zeagle single or twin tank bladder system Bladder lift capacities from 34 lb to dual redundant 85 lb assemblies Extended slot on plate makes aligning dual cylinder systems a snap! Accepts most standard Zeagle BC accessories Zeagle quality and guarantee Includes: deluxe harness, quick release buckles on shoulders, and adjustable sternum strap Many divers have come to appreciate the ruggedness, simplicity, and stability of metal backplates in a buoyancy system. Now you can have a range of backplate buoyancy options that take full advantage of Zeagle&';s flexible sizing and wide range of bladder options. This is the harness only, no backplate is included.