I have gained arbitrarily these swimming goggles and I must admit that I was pleasantly surprised when unpacking. I could not imagine how a swimming goggles for the price is worth anything, but where swimming goggles of "no-name brands" in the sports business are already much more expensive to me. Now I was disabused, are as packaging, processing and material are really first quality. The central bar is adjustable in two stages and the length of the rubber band can also vary effortlessly. The problem, which to me, however, was presented that the elastic band of my glasses for head circumference (~ 58cm) was too tight, although I had already set as far as possible. For me a great pity, but for all other smaller head circumference definitely a buy recommendation!