Piston Head BEst Power bank A perfect gift to introduce

A perfect gift to introduce the great outdoors to kids

The revolutionary clean tank technology in place protects the tank from mold and mildew

With all-steel construction

Perfect for photographers

Piston Head BEst Power bank A perfect gift to introduceThe Piston Head is located inside the Main Cylinder. The Piston Head has two O rings (sold separately) which create a seal in order to keep the product from leaking out of the Main Cylinder. Once the product is drawn through the Rotary Valve and into the Main Cylinder the Piston Head will then push the product back through the Rotary Valve and out through the Dispensing Nozzle and into the product container. Product Specifications: Material: Nylon