Nite Ize INKA Key Chain Pen

The Inka Pen is engineered to be conveniently accessible and write in all conditions - underwater, at any altitude, in extreme temperatures, and at any angle. It's innovative and patented, multi-function design allows you to use it as a quick-use pen or a full-size fine writing instrument, and the stainless steel split ring lets you attach it securely wherever you need it. Housed in a durable and lightweight aluminum body, the Inka pen features a replaceable pressurized ink cartridge that gives the Inka Pen its amazing ability to Write Anywhere®.PRODUCT DETAILSCan be used as a quick-use pen or easily converted into a full-size penReplaceable pressurized cartridge allows for writing at any angle, in extreme temperatures, and at any altitudeThe split ring attaches to key chains, backpacks, and more for ultimate accessibilityWaterproof blue inkTo use as a quick-use pen, simply pull the pen out of the aluminum barrel to use in the quick-use modeTo convert to a full-size pen, unscrew the barrel from the split ring, unscrew the cap from the quick-use pen, screw the quick-use section into the barrel and replace the cap on the open endDimensions: .378 diameter x 3.95 x .98 (with keyring) | 9.6mm diameter x 100.3mm x 25mm (with keyring)Weight: .35oz | 11g