The HP Rechargeable Active Pen G3 L04729-003 is a stylus designed specifically for the HP Elite Books x360 series. It is an active stylus made of metal/aluminum material, featuring Bluetooth connectivity and battery power for convenient use. This pen is compatible with various screen sizes, including 11-inch and 12.3-inch models, and comes in a sleek silver color. With its rechargeable feature and compatibility with specific HP notebooks, this Active Pen is a practical and stylish accessory for enhancing your digital writing experience.