You're having a laugh, I played an entire season on 1 set of 9volts. Eggs were the best, you could wipe hits off them like nobodies business.Oh come on Guys tell the truth !! they were rubbish !! how many times did you find whilst playing with them the Lid just popped open ( the wrong way ) and then lost your balls, and if you played any more than 2 x rounds with them without changing the batteries... you were lucky. Now if your going to spend £1000 on a gun, why put a 10p hopper to make it do it`s job, just as well use caterpaults then stick a Rotor on so to make it feel expensive, If you`ve got a cheap gun then the hopper above is Great or perhaps you just want to save money. Ahh yes !!! I remember all those screws to undo hoppers but I`m trying to forget !!!