Tube Bottle Roller with 10 rollers Designed for the gentle, throrough mixing of a variety of containers, including bottles, test tubes, centrifuge tubes and roller bottles. As the roller mechanism rotates through each complete revolution, the right side of each roller is gently elevated about 0.5 in (13mm) and returns to the horizontal starting position. This additional, gentle up/down motion provides a wave effect and guarantees that the entire sample is subjected to complete, thorough mixing, end to end. This built in tilt feature provides a level of homogeneous mixing uniformity that can not be matched by any stationary roller apparatus. Features Gentle rolling motion Smooth +/-5degree tilt action For tubes, bottles (8~200mm in diameter) Specifications Speed:Fixed, 38 rpm (+/- 10%) Tilt Angle: +/- 5° Motion: Simultaneous roll & tilt Operating Temp. Range +4 to +40°C Dimensions:(w x d x h) 18 x 14 x 3.5 in./ 45x 36 x 9 cm Number of Rollers: 10 Weight: 8kg (17.6lbs) Roller Dimensions:12 x 12.5 in. / 3 x 32 cm Vessels Accepted: 8mm to 200mm (diameter) Roller Spacing: 5mm (rollers are on 35mm centers) Electrical: 115V or 230V, 50-60Hz