Since I have chosen the Gesmtpaket including pump, but here, a word about this very. Of course you can not quality for this price pump expect the enclosed plastic part but actually second-rate. For my ball with 75 cm diameter, the pump is too weak in my opinion, if you have the ball almost aufgepunpt comes an air pumping again contrary. I had to ultimately re-inflation with a suitable pump for footballs and tires to really get the ball at full volume and not too deep sinking while sitting, although it is intended for my size at normal weight. For this small shortcoming therefore deliver a star. The ball itself is great and gets me smooth five stars!