Manufacturer supplied information:

• Tilt Sensitive and Palm Proof - Surface pro stylus different angles produce different lines and shadows on the screen.
• Dual-Touch Design - The surface pro pen features a two-in-one touch design with 1.22mm tip for traditional handwriting.
• Charge UP to 2x Faster - The surface pro 12 stylus USB-C fully charges in 30 minutes for up to 60 hours of continuous operation.
• Quick Connect and Dual Magnets - No need to connect to Bluetooth or apps, comes with two built-in magnets for secure connection.
• Eraser Key and Right-Click - The surface pro 9 stylus pen features a one-click toggle eraser function and a right-click shortcut function.
• Compatibility - Compatible with Surface Pro 12/11/10/9/8/7/6/5/4/3, Surface Laptop / Laptop 2 / Laptop 3 / Laptop 4 / Laptop 5, and more.
• 4096 Pressure Sensitivity - Produces a wide range of line widths and tip sizes for precise control.