DAITOU Air Pamp Plastone II No 836

Different from conventional sand hardened stones Since there is little resistance to the pump, the battery lasts about 8 to 10 hours.
Because it is made of plastic, there is no chipping or collapsing.
Weighing about 21g, it does not float.
Silicone type hose does not harden easily and does not easily get creased.