Features: The for PEN68 battery powered drawing pen features precise electromagnetic technology with double customizable buttons. Requires 3A battery prior to use. Features on/off button at the top of the pen. Both pen buttons are customisable. The P68 pen is exclusively compatibles for pen68 products: 420, H420, K56, H58L, 680S, S56K. Not suitable for mobile phones/PCs/computers/monitors/Pad/ tablets or other touches screen tablets. Ideal for digital artists, designers, and pen68 tablet users professional precisions in illustrating, modeling, and graphics design workflows. Technology: for pen68 electromagnetic digitiser. Specifications: Component：Aluminum Size: about 13cm/5.11 long Pressure： 2048 Applicable model: Only for pen68 products: 420, H420, K56, H58L, 680S,S56K Package Includes: 1PC For PEN68 Drawing Pen note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.