Made of quality material, high strength, good toughness, corrosion resistant, high temperature resistance.
With air hole, In the long
-term wear, the helmet inside will generate heat, open the vent hole, can effectively dissipate heat.
With four head light cards (two in front two at back), it can effectively fix the headlights, convenient for spelunking, etc.
When the adjustment device is rotated to the left, the head circumference will be large. When turning to the right, can be adjusted according to your need. Applicable head circumference 54
-60cm.