The creative inspiration is from the founder of X guard who loves outdoor activities such as running, climbing, riding a bike and etc. One day in 2011, he was thinking about new products design, all of a sudden an inspiration came up “why not make the phone case with mechanism design of concavo-convex turn buckle connection”. It will be very intuitive, quick and convenient to operate, and also could link with different kinds of accessories. Besides, it is very cool! As it can be so popular in motorcycle groups, analyze the reasons: 1. X-Guard looks stylish and simple, which is different from other mobile phone holders. 2. It is fast, convenient and secure to connect with mobile phone for users. 3. There are many accessories to choose from. In recent years, Cube has been focusing on the research and development of various mobile phone holder accessories for bikes, motorcycles, cars and outdoor activities. Cube’s products should provide the most comprehensive and complete in the market.