Universal Mounting Bracket 2. Wheel Sensor 3. Computer Case with Installed Battery Thank you for purchasing this Planet Bike bicycle computer. Planet Bike will donate 25% of our profits from this purchase and any other Planet Bike products you buy to grassroots bicycle advocacy groups that work to improve conditions for cyclists. Enjoy your new Protege bicycle computer and thank you for making a difference! fnr* % of profits to iCJtt/ojcfe advocacy 4. Battery 5. Wheel Magnet 6. Quick Ties