Features: Suitable for Garmin-Edge 840 bicycle-wireless bike computer. High-quality silicone- material, light weight, strong-toughness, durable-, wear-resistant and scratch-resistant. Does not fade, does not change color, can be washed with water, easy to clean. 6 colors are available, highlighting- fashion and personality, and can be matched- with various riding- sports scenes-. The size fits, built-according to the- original code table, easy to take and install. Specifications: Material: Silicone Size:Approx.86.25x60.52x18.15mm or 3.39x2.38x0.71inch Color:Black or White or Navy Blue or Red or Sky-Blue or Light Green For Garmin-Edge 840 Product Weight:15g Note: .Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. .Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings. Package includes: 1x Protective Cover