Description Never waste a drop! This black conical insert with for your Noodler's 3oz bottles helps you easily fill your pen. The black cone has cutouts on each side that allows the ink to flow into the cone, collecting the ink into one compact, easy to use space. It also fits other bottles that are challenging to use when the ink level gets low, such as the Platinum 60ml bottles. Instructions for use: - Open ink bottle and place Ink Miser Intra-Bottle Inkwell into the 3 oz. bottle. - Replace ink bottle cap and screw on tightly leaving the Ink Miser in place. - Turn bottle upside down a few times allowing the ink to fill the Ink Miser. - Quickly turn upright and carefully remove the lid. - Place pen nib in the ink-filled Ink Miser and fill the pen with ink as usual. - Leaving your Ink Miser in place, you can replace the cap and secure tightly. - Wipe the pen with a dry cloth to remove excess ink.