Hard Case for Polar H10 H9 Heart Rate Sensor/Monitor/Fitness Tracker/Chest Strap by Aenllosi(only case) , For sale is case only (device and accessories are not included) , With Internal mesh pocket can store other accessories at your convenience , Internal Dimension: 5.9x1.8*1.2 inch, External Dimension:6.3x2.2x1.6 inch Weight: 2.9oz , Features: Case is made of supreme quality, durable EVA, crush resistant, anti-shock, water resistant material provides adequate protection from bumps, scratches and splashes