Description Never waste a drop! This clear conical insert work in many different ink bottles, such as Waterman, Monteverde 90ml, Noodler's 3oz, Platinum 60ml or any other with a similar opening size! The clear 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. To use: - Open ink bottle and place Ink Miser Intra-Bottle Inkwell into bottle opening. - Replace ink bottle cap and screw on tightly leaving the Ink Miser in place. - Turn bottle upside down slowly a few times allowing the ink to fill the Ink Miser. - 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. We offer Free Shipping on all orders over $59 for US customers, and for orders over $250 for our Canadian customers.