Smartnoble Emergency Portable Self-contained Breathing Apparatus Aluminum Diving Gas cylinder Kits: diving cylinders and valves, weight-increasing lead blocks, breathing regulators, diving suits, flippers, BCD, diving glasses, diving gloves, diving depth gauges, diving caps, diving gloves, diving torches and so on. The complete diving equipment is suitable for deep diving environment in warm waters. It is widely used in recreational sports diving, fishing, ship decontamination, deck maintenance, fish pond culture, underwater fishing and hunting, underwater rescue, underwater search and so on.