The Duncan Grasshopper GTX is World Champion Janos Karancz Signature Yo-Yo. A high performance bi-metal yo-yo, with finely tuned design details for competitive play & everyday carry. Comes with a premium concave bearing included for premium feeling and extra spin-time! SPECS: Weight: 65g Width: 44.67mm Diameter 56mm Body Material: A6061/ Stainless Steel Pads: 19mm Bearing: Licensed Dif-E-Yo Concave