Grasshopper YoYo - Duncan - A2Z Science & Learning Toy Store
YoYoExpert - New Duncan Yo-Yo Grasshopper GTX restock! World Champion János Karancz signature model is online now in four new colors! #todaysthrow Find them in New Releases! NewRelease.YoYoExpert.com | Facebook
YoYoExpert Blog & Yo-Yo News – New Release from Duncan! The Janos Karancz Grasshopper GTX!