This wax is very hard (it seems graphite based) and because of this hardness it was tricky to apply at first. In the end, with gental rubbing to the necessary surfaces, it applied satisfactorily and improved peg action dramatically.
Four stars for quality because the contents of the first tube was cracked in the middle on arrival, suggesting that it may be somewhat brittle. Naturlich Thomann sent a replacement out which arrived intact; great customer service!