To inflatable, just put the inflatable head at the filling hold, then press the switch. To deflate, you should put the inflatable head in the vent hole, then press the switch to deflate. 3 Types of Nozzles with Secure Locks:The air pump has 3 different size of nozzles-S (0.28"), M (0.55"), L (0.71"), fits most different inflatables you need.
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