The Just for Mouse Stereotaxic Instrument was specifically designed for use with knock-out and transgenic mice. It is our smallest and most economic stereotaxic instrument. Available as Dual, Ultra-Precise, Digital or Motorized. The smallest and lowest priced Stereotaxic Instrument! 25cm X 25cm Footprint; Gas Anesthesia compatible; Ear and tooth bar post height adjustment to accommodate animals between 10-75g; Delrin ear bars, with 3 types of head holders; Triple lead screw in manipulator arm for fast positioning; Dual arm capable (2nd Arm is optional); Digital LED display (Digital Only); Software and motor controlled (Motorized Only); Integrated Stereotaxic Atlas (Motorized Only); Accurate to 100 microns (Non-Digital), 10 microns (Digital Only) or 1 micron (Motorized Only). The Stoelting Just For Mouse Stereotaxic Instrument was specifically developed for the expanding growth of research being conducted in laboratories using knock-out and transgenic mice. The Stoelting Just For Mouse is ideal for researchers in need of a versatile, reliable instrument for stereotaxic procedures with mice and other small rodents. Precision alignment when using the Just For Mouse ensures accurate placement of electrodes, micropipettes, cannula, and other devices. Stoelting's Just For Mouse is the only instrument built especially for mice, and offers several advantages over competing "made for rat" instruments.