Outroad Inflatable Stand Up Paddle Board 10.5 ft SUP 6" Thick w/Bottom Fin, Non-Slip Deck, Adjustable Paddle, Leash, Hand Pump and Carry Backpack, Mint Green. For the air pump, if you use an inflator to inflate by yourself, you can keep pumping all the time to see the pointer move. But it is better to use a mechanical air pump to inflate, which is convenient and labor-saving. And only when the machine air pump to inflate the SUP board, the pointer will change obviously.