The machine is constructed to hold flasks from 100 ml to 1000 ml. conical or round bottom. The shaking speed action is variable & controlled by speed regulator fitted with fractional H.P. Motor. To work on 220 V AC 50 Hz. supplied with plug & cord. Available in following option. To hold 4 flasks To hold 8 flasks To hold 4 flasks with 4 bottles holder To hold 8 flasks with 8 bottles holders