CAT EYE MICRO WIRELESS CC-MC200W, a wireless cycle computer. Includes the sensor, sensor rubber, magnet, base (from Strada Slim), base rubber band, and a printout of the instruction manual. Cable ties are not included, so please prepare them if needed. Batteries are included, but they may be depleted, so please consider them for testing purposes. It was used until yesterday, so there are no operational issues. There are signs of use such as dirt, scratches (mostly on the side of the main unit), yellowing, and rubber degradation, but it is still usable. Shipping will be via Mercari's Yu-Packet Post Mini. It may take slightly longer than regular宅配便 (courier service). Please note that I cannot accept any other shipping methods. I do not offer price reductions through comments or other means. I will not respond to comments requesting a price reduction, so please purchase immediately. I do not smoke, but I do have cats. I take precautions, but there may be slight cat hair on the packaging. Please refrain from purchasing if you have allergies.