Mytrix Technology DP01 Electromagnetic Wacom EMR Digitizer Pen for lenovo ThinkPad X200t X230t X240t, Helix ASUS EP121 Vivo Tab, Samsung Galaxy Notes, ATIV Tab Surface Pro 1&2, Replace Samsung S Pen This electromagnetic digitizer pen compatible with Wacom penabled devices It is compatible with Lenovo ThinkPad X201t X210t X220t X230t X240t ThinkPad Yoga, ThinkPad Helix It works on Microsoft surface pro, surface pro 2 and Samsung galaxy note This electronic digitizer pen are pressure sensitive producing thicker lines with extra pressure Eraser tip and high sensitive touch for writing with clear and thicker line