BioMixer™ 3D Nutating Shaker, fixed speed, 12"x12" platform, dimpled mat, 115VIncludes dimpled mat; ideal for mixing in blood & centrifuge tubes Tri directional motion for thorough, uniform mixing Optional stacking platforms available Cold room and incubator safe These multi functional shakers provide a 3 dimensional nutating motion for thorough, foam free mixing in blood and centrifuge tubes, as well as in a variety of flat vessels. Both models come standard with autoclavable dimpled mats while optional flat mats are also