@GB Features: Made from carbon fiber material, super lightweight and durable. Out-front installation enables you to easily view data on your bike computer. Great replacement for Garmin/Bryton/Cateye bike computers. Also compatible with sports camera and flashlight. Specifications: Material: Carbon fiber + Plastic Size: 52 * 80mm / 2 * 3.1in Weight: Approx. 30g / 1oz Package List: 1 * Bike Computer Holder 1 * Adapter for Bryton 1 * Adapter for Cateye 1 * M5x18 Screw 2 * M3x6 Screw 2 * M5x40 Bolt 2 * 15mm Screw Sleeve 4 * Spacer 1 * Camera Adapter 1 * Flashlight Holder Shipping: 1.We guarantee to ship goods out within 24-72 hour after payment confirmation except holiday. 2.We ship by China post,HKpost EMS,DHL,Fedex,according to your choice when placing orders . 3.If you didn't receive the item after 45 days,please feel free to contact us.We will make all our effort to resolve the problem. 5. Due to stock status and time differences, we will choose to ship your item from our first available warehouse for fast delivery. Warranty: 1.All items have 1 year guarantee.IF your purchase do not meet merchantable quality, fitness for purpose or match the description, We can make sure your issues are resolved . 2.For wrongly-shipped items, Please contact us in 48 hours after delivery.We will arrange to deliver the correct items or return all your payment. 3.For defective or faulty products,please take photos or videos,we would resend or refund after confirmation.