Bought for the second time the pump. The first held four years and has also claimed much. The needle had never become exchanged. It is very stable and the small tube prevents moreover, that the needle does not bend during inflation. Due to its compact dimensions, the pump finds itself in the smallest backpack. The first pump blocked after four years, the pumping mechanism. Something bill inside to be broke. Of course by the small size more pumping operations are needed than with a large pump, resulting in a greater stress. Every 4 years 6 Euro is to spend but to get over. Would be nice if a replacement needle would be accompanied by, just in case. Price / performance is very good -> buy recommendation