Yanxora Portable Desktop Electric Centrifuge Machine Desktop Electric Lab Laboratory Medical Centrifuge Machine 4000rpm with Timer and Speed Control Equipment Practice for Biology MedicalDurable & StableMade of high quality metal material, separating the liquid from the solid particles or the liquid mixture of different density. Speed Adjustment & Time SettingEquipped with speed control and timer to meet your requirement and the timer also functions as on off switch; Timer Range: 0 60min. Portable & Wide ApplicationPortable; Small size and light weight, ideal for lab, chemistry, hospital and colleges so on, mainly used to analyse in