This part of the toy is flat and smooth, so much so that you can’t feel it, and when it’s lined up with the magnet on the inside, the two magnets immediately lunge for each other. The magnetic pull is so strong that even with the Ferri’s cardboard packaging between the two magnets, they came together securely. In other words, I’m not just talking about a comfortable fit physically, but there’s a mental comfort in not having to worry about the Ferri going anywhere it isn’t supposed to; it’s…