TubeRocker Platform Rocker with grooved mat for tubes. The TubeRocker is designed to provide the ideal speed and tilt angle (24 rpm / 30°) for agitation of sample tubes. The grooved design of the included rubber mat properly secures all tube sizes ranging from 1.5 to 50ml, without the use of added straps or bands. There are no complicated controls, no settings or adjustments to be made; just press the power switch and let it rock. Small in size (only 5 x 13 inches) and able to withstand temperatures from 4ēC to 65ēC, the TubeRocker Mini is small enough to fit on any lab bench and can conveniently be placed inside a cold room, refrigerator or laboratory incubator.