First of all I must say that was the shipping generally always- Amazon -As very quickly. 1-2 working days are, in my view simply top. When punching themselves, after a closer look once nothing to complain about. When assembling -What really quick and easy geht- the few items, a lot to me but then on that's wrong let into the anzuschraubende the stand anchoring the steel spring. One can not change as well. I have the punching stand reappointed and lo and behold, the same problem again. This is because it is not ground at the ends of the spring. For whatever reason. So of course you have a slight imbalance in the Punching stand. By using washers not -the included Video- on the screws, but the difficulties can be roughly balance. So you can train even 1a in this boxing tools after all. The stand I have filled with aquarium gravel / grit 1-2mm. 25kg it should be enough for a normal workout. Water goes. Filling with sand is very bad, because the filling opening -indoors- is not quite slanted and therefore the sand is not really good slides. When filling with aquarium gravel, a funnel is very helpful, it's really quite quickly. Without But the stand goes, then just make a slight angle. The Punching stand is height adjustable and therefore for -fast- everyone. Which, as I call them -Speedbirne- is very durable polyurethane. So why bother with pump. For training on Punching Stand, I recommend light workout gloves. On the whole, a decent boxing tools -as already said- with slightly skewed. That's why, unfortunately, only 4 out of 5 stars !! (Maybe the small defect is eventually resolved by the manufacturer)