This Retractable Ball Pen Pen Combines Bamboo with Abs Plastic with Aluminum for an Eco-friendly, Durable Body. Its Embedded Nfc Chip Lets Any Smartphone Trigger a Digital Business Card or Brand Webpage with a Simple Tap. the Pen Uses Smooth Oil-based Ink & Features a Protective Click Mechanism. Custom Logos or Qr Codes Can be Added Via Laser Engraving or Uv Print. Ideal for Offices, Trade Shows, & Corporate Gifts, This Pen Also Serves as a Programmable Tool for Marketing or Access Control. the Bamboo Fiber Provides a Warm Grip, While the Plastic Core Ensures Reliable Signal Performance. Chip Content Can be Updated as Needed, Transforming an Everyday Writing Tool into an Interactive Digital Device.