Stainless steel vacuum investing system. Three-dimensional mixing which results in ultra-smooth mixing for all investments and gypsums. New expanded mixing capacity up to 1000 Gm. Programmable mixing time. No oil or vacuum pump to maintain, uses unique built-in air pressure “Venturi” system to create full vacuum. Built-in extra-large vibration table with variable speed. Can be used on a table or wall mounted. 1-year warranty.