The Surveillance is a bi-metal design with a beautiful stepped h-shape profile. The stainless steel rings give it some serious stability and spin power, but where the Surveillance really shines is in its maneuverability. Daiki Tanaka wanted his signature yo-yo to move smooth, fast, and on command, and that’s one of the first things you notice when throwing it! The Surveillance has a light fast movement on the string that just seems to follow your every move, it’s right where you want it to be almost effortlessly!