beautiful design, bad quality

My 3-year-old son has been looking incredibly dinosaurs bell. I have attached together with him on his wheel and it immediately launched its first test drive. A few meters later, the fun was over already. He fell slightly and the bell body was terminated immediately. I then looked at the bell and found that this is screwed only a simple plastic pen with the ringing me accurately. Sorry, but just as a product for children should be made with higher quality materials, so I do without in the event a replacement.