Introducing Opus 88 Mini Pocket Flying Rabbit! This special collaboration between Opus 88 and illustrator Soupy Tang showcases her signature Flying Rabbit illustration. Enjoy its charming and imaginative design while writing with the quality of Opus 88. A must-have for collectors and fans of Soupy Tangs unique style.This is an eyedropper filler pen with a shut-off valve mechanism.To fill, unscrew the section, fill with the included eyedropper, and replace section. To write, simply unscrew the end blind cap, which releases the middle piston rods shut-off mechanism. (video below)4.48 long, .6 diameter.Smooth stainless steel #5 Jowo nibChrome clipEyedropper includedNeed Pen Storage? Check out our some of our awesomePen Cases.