Polar H10 Heart Rate Monitor Chest Strap - ANT + Bluetooth, Waterproof HR Sensor with box strap and papers. Medium-XXL size.

Strap color shown in picture.

Comes with everything shown. Does work perfectly with polar beat app.

Battery not included. Takes a CR2025 battery

Please see pictures for condition. If you have any questions or would like more pictures please message me. Thank you