(Click to see larger image) The MINJ-8 Custom Front-fill Unit is an attachment which adds on to our MINJ-1 analog microINJECTOR™ and eliminates the need to remove your microcapillary needles from your needle holder to refill them! A simple knob controls the strength of vacuum used to fill your needle, and the ease of the microINJECTOR™ system foot pedal control keeps your hands free while you load your needle by aspirating liquid in through its tip. It also makes the MINJ-1 compatible with cytoplasmic transplantation and cellular / subcellular xenografting experiments.