Main use and scope of application Applicable to coastal and flash; Drifting, snoring, and water sports protection.

The main parameters:

· buoyancy ≥ 7.5kg

· Floating Village: Polyethylene foam (buoy loss should be less than 5% after soaking in water for 24 hours)

·Floating state: keep the human body vertical or backward, the head is higher than the water surface