We are committed in providing an exclusive range of I-Roll RnR4 Tube Roller Mixer. It is made with a high qualitative material for mixing viscous substances. This mixer is design in a compact size that is east to clean and fits most test tube sizes. I-Roll RnR4 Tube Roller Mixer is a type of lab equipment used mainly in biochemistry and medicine. It is easy to rotate in a fast manner and thoroughly mixed for optimal homogeneity.