1. Material: 210D nylon hydrolysis resistant TPU coated cloth
2. Fabric characteristics: durable resistant to seawater corrosion
3. Design: low pressure inflation or mouth blowing explosion-proof valve to prevent excessive air pressure lead block at the bottom
4. Function: Use diving in front of the water to warn ships sailing on the sea to avoid unnecessary danger
5. Weight: 1.2x15cm (340g) 1.2x18cm (360g) 1.5mx15cm (340g) 1.5mx18cm (400g) 1.8x15cm (390g) 1.8x18cm (450g)