I use this tamper for three months now. Top-quality, varnished wood still looks 1a, the stainless steel foot one gets naturally only through damaged by serious maltreating (in contrast to the frequently encountered in this price range Aluminium Tampern). The convex shape allows me optimum Siebbefüllung, since no more problems with "durchrauschendem" Espresso for channeling. However, a Tamper with 58.5 mm would be optimal for my Gaggia CC-screens. Well, should measure times exactly before buying)