PS7 is a wax that works well in normal winter conditions, below freezing. The hardness makes it easier to work with and it is easier to get a good end result. PS7 is a very good ski trip and training wax as well as a good all-round base prep wax. The speed of the waxing iron should be approx. 8-10 seconds for a skating or alpine ski. The wax can be reheated after cooling to room temperature (10 min.) for better durability. It is important to have a good waxing iron in order to melt the wax efficiently. Recommended waxing iron temperature 140°C. Replaces CH7X. The 900-gram pack contains 5 x 180 g wax bars.