History / About
Eureka was the first model released by Aufheben, a Japanese yo-yo brand. Yoyostore Rewind describes it as a 7075 (“super super duralumin”) mono-metal model; its shape was carried into Oxymoron (a larger, wider alternate version) and Eureka RM (re-mastered, about 2 mm wider). No standalone product page was found.
