Compact, convenient 4 oz. (118ml) capacity polyethylene stainless steel pump-action lid. Dispenses just the right amount of flux, alcohol or other liquid. Just pump the lid and the fluid is dispensed in the well of the lid. The one-way pump holds the fluid in the well, preventing contamination of the unused fluid in the bottle. For best results and to avoid clogging, the well should be emptied and cleaned between uses.