Feature:
Make of ABS Materials, can bear the immersions of seawater.
You can quickly remove the air according to your needs, and the accidental over inflation during inflation, making you more focuse on diving.
Scubas diving standard with overpressure Valves/ pressure relief Valves for lifting bag and , can rupture, light, strong, and wasy to carry.
Attach with drawstring lanyard, easy to assemble, easy to use.
Specially designs for water sport, professional equipment, comfortable and enduring.

Specification:
Materials: ABS
Large diameter: about 5.50cm/2.17inch
Small diameter: about 3cm/1.18inch

Note:

Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.

Package includes:
1Pc Scubas Diving Dump Valves