The ceramic slip tamp is a simple, no frills, espresso tamp. No space age engineering required! This is a 58.5mm tamp, perfect for E61 groups heads and many more. The head is made of 304 stainless, and is bonded to a ceramic handle. It is 3.5" tall & weighs nearly half a pound. Each piece is hand made, fired, and assembled here in my studio. (This size accommodates nearly all professional and prosumer espresso machine portafilters)