This is the pen set that came with the XP-Pen Artist Pro 16 (Gen2). I'm selling it because I've switched to the Slim Pen. 16K levels of pressure sensitivity, exceeding imagination The new X3 Pro smart chip stylus achieves the world's first 16,384 levels of pressure sensitivity, providing a smooth drawing experience with approximately twice the detection capability* of conventional styluses, allowing for more efficient creation and precise lines to carefully express every detail of the art world. Stylus Pen: X3 Pro smart chip stylus x 1, replacement nibs, standard nibs x 3, felt nibs x 3 Pressure Sensitivity: 16,384 levels Reading Height: 10mm Tilt Detection: 60° Activation Force: 3g Compatible Models: Artist Pro 22 (Gen2), Artist Pro 24 (Gen2), Artist Pro 19 (Gen2), Artist 22 Plus, Artist Pro 16 (Gen2), Artist Pro 14 (Gen2), Artist 13.3 Pro V2, Artist 15.6 Pro V2, Deco Pro (Gen2) Thank you.