... inflatable item.4.On large items like the inflatable boats,king-size air mattress,the pump should fit directly to the valve ... the appropriate adapter nozzle for samll items,such as single-size air mattress,etc.5.In order to protect the pump ... ,the working time should be less than 30 minutes. Product size;14*10.5*12.5cmpacking:1pc/color box,24pcs/ctn ...