Exterior cabinet made of enameled ABS plastic. Elastic motor suspension minimizes vibration. Fixed angled head for 6 tubes with numerical identifier. Transparent polycarbonate cover displays rotor operation. Digital electronic speed and time regulation. Selection from 1000 to 4000 rpm in 500 rpm increments. Time selection from 1′ to 60′ in 1′ increments. Included 6 adapters with 6 glass tubes of 15 ml, 6 adapters for round tube and 6 adapters for FALCON tube.