Winner of Coffee Geek’s 2006 Editor Choice Award for the Best Training Tool category, the Espro Calibrated Tamper features world class construction. This unique tamper automatically clicks when 30 pounds of force has been exerted onto it, alerting you when you have reached the proper amount of tamp pressure for espresso extraction. These Espro tampers feature stainless steel convex bases and are available in 49, 53, 57 and 58mm sizes, and all tamper sizes feature a polished black handle. Espro Calibrated Tampers are designed, machined and assembled in Vancouver Canada.