Mares Sirius L Dive Computer Swimming Fins The stainless steel blade is

The stainless steel blade is made of 316 stainless steel

Available in either black with a yellow glow-in-the-dark handle or black with a black handle

A drain in the reinforced PVC bottom ensures that any water empties out

Construction: Framed

Mares Sirius L Dive Computer Swimming Fins The stainless steel blade isKey Features at a Glance: Dive modes: Air, Nitrox, Multigas Nitrox, Freedive, Bottom Timer Bhlmann ZH L16C algorithm with customizable gradient factors Multigas capability: up to 3 gases Safety Stop and Safety Stop+ options Bottom Timer mode with resettable average depth and stopwatch Decompression dive planner with user adjustable surface interval Logbook capacity for up to 100 dives with graphs (via Mares App) User replaceable battery (CR2450)