Extracting the barbed post and tubing from a compression rimless lens can be disastrous. Especially if you are dealing with a high plus, thin lens edge. With this parallel action plier you can easily and safely do the extraction. This simple to use tool requires gentle effort to delicately push out the post and tubing from the holes. Will not mar lens or frame. Pins pivot easily to accommodate horizontal and vertical mounting systems. Optional single pin holder available.