See Saw Rocking Shaker LSSR-A20 Labtron See-Saw Rocking Shakers utilize a unique wave action for efficient mixing, featuring a speed range of 10-70 rpm and a timer from 1 minute to 19 hours. With a temperature range of 5-40 °C and a maintenance-free brushless DC motor, these shakers ensure quiet operation. The universal platform includes an anti-slip mat and can accommodate multiple stacked platforms, ideal for mixing culture flasks and Petri dishes.