A Cafelat Tamper base only, these fit the following Cafelat tamper handles:
Pillar: http://www.cafelatstore.com/products/pillar-tamper
Drop: http://www.cafelatstore.com/products/drop-tamper
Nikka: http://www.cafelatstore.com/products/nikka-tamper

All expertly finished in-house with a silky smooth brushed finish.

The bases come in 54mm Flat, 57mm Flat, 57mm Convex and 58mm Flat.