Sigma Blade Zwei
Manufacturer YoYoJam
Release date 2005
Shape Butterfly
Color Various
Weight 66 grams
Dimensions Diameter: 54.57mm
Material Plastic with aluminum weight rings
Bearing size Size C YYJ Large
Response system Original: Hybrid starburst/O-ring
Later models: O-rings

The Sigma Blade Zwei by YoYoJam is yo-yo first released in 2005. It is the second signature series model of Daisuke Shimada, and the successor to the original Sigma Blade. It was also featured in a 3A video produced by Shimada himself. The first run of the yo-yo utilized a hybrid response system of a starburst and an O-ring. The later versions came with the O-ring response system.



  • "Zwei" is German for "two", referencing on how the yo-yo is the second version of the Sigma Blade.

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