Benefits:
+ Reasonable price
+ Needle can be stored in the pump - is neither lost nor destroyed
+ Doppelhubsystem - pump blows in the up and down movement of air in the ball
Oh, my pump was a sticker bearing the words "Only label then remove the cover to gain access to needle" and on the cover of the needle compartment, there is a unique icon - who is still not in a position as the needle to find, the is not be helped.