The Delta Standard was made for the Delta Diver that is widely used for salt water fishing although it has application for the fresh water and great lakes The Delta Standard (Patent Pending) is a custom design for holding divers for Salmon, Coho and Chinook for the salt water fisheries Fully 3D printed and made from high quality TPU the Delta Standard fully protects your diver and leader from damage with it's one-off designShatter proof, resist chemicals, hot & cold tolerant, and flexible to a point, this will be the the last storage device you will buy.Coming in 7 standard colors and 6 special colors you can customize to your boat, setup, or what suits you. Diver not included! !!! Please not that the Delta Standard is NOT a flotation device !!! Please note all colors are available even if they don't show in the color selection