|Dimensions|| Diameter: 55mm |
|Bearing size||Size C KonKave|
|Response system||Roo-Yo S.I.D.R.O.M.S. (Sistema Innovativo Di Ritorno O-ring Micro Siliconici)|
Upon first glance of the Roo-Yo, you'll notice the distinctive "dimple" patterns on the outside halves of the yo-yo, meant for improved aerodynamics. However, the beauty comes from what's on the inside. The yo-yo features the unique S.I.D.R.O.M.S response system - four small silicone O-rings that you control to determine the responsiveness, by pushing them in or pulling them outwards. Moreover, the Roo-Yo features Dif-e-Yo's patented KonKave bearing. It combines Italian styling with advanced yo-yo technology.
The S.I.D.R.O.M.S. was originally produced by accident, when the machinist misunderstood Niubi's description of an o-ring response system. However, it was realized that the S.I.D.R.O.M.S allowed for even greater customization than with traditional o-rings, so the design was kept for the production run.