About this item Removes solder quickly and easily with vacuum action Rubber bulb with long lasting PTFE tip To remove solder from a joint: Heat up the joint, squeeze the bulb and place the tip onto the joint. Quickly release the bulb and melted solder will be sucked into the tube. To clean: Wait until the solder has cooled, then remove the tip and dump out the contents of the bulb Measures 3.80″ long and 2.50″ wide