In one to two minutes, this dry ice maker will produce a solid 16 oz. (454 g) block of dry ice. Only thirty seconds is required to remove the block. Block of ice is 3.4"" diameter x 4.4"" long. Brass relief valve. Safely vents excess gas. Made of epoxy-coated steel with an aluminum ice chamber and four non-skid rubber feet. Includes a 6-foot nickel-plated copper connecting tube with standard threaded couplings for attaching to a CO2 cylinder. Dimensions are 12"" x 6.5"" x 5.9"". Shipping weight is 22 lbs. Warranty: 1 year.