Constructed from 304 stainless steel, resistant to rust and corrosion. Apexstone premium espresso tamper enhances your coffee-making experience. Ideal for compacting fresh espresso grounds prior to brewing. Dimensions: base diameter 51mm, height 3-1/2 inch, weight approximately 0.66lbs. We provide a 1-year 100% satisfaction guarantee. Contact us for an exchange, refund, or return if our 51mm Coffee Tamper does not meet your expectations.