Signswise Solder Paste Glue Dropper Liquid Auto Dispenser Controller For SMD PCB Two controlling modes: manual mode & auto mode. Precise control of dispensing drops and dispensing cycle. Suck-back function ensures no leakage drops. (Not for sucking glue) Work great for secure the SMD components position before soldering work. FREE SHIPPING from China via DHL, usually takes about 3-7 business dayss for the delivery