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YoYoFactory 401k Espionage
Exhibit #1131
ShapeConcave )-(
ConstructionMulti-piece aluminum
Diameter2.25" Dia
Weight68 g
Estimated Value$120
ConditionMint in Package
OwnerDavid Hall

The 401k represented another major innovation in yo-yo technology, as we've come to expect from the Van Dan Elzens. Hans and his team at YoYoFactory created the first yo-yo with an adjustable response system. Shuttles around the bearing move in or out, depending on how you adjust the knob on the outside of the yo-yo. So response can be increased or reduced, depending on how you advance or retract the shuttles.

While the 401k came with starburst response, stickers could be also used, making this a very flexible design. Look carefully at the shuttle around the bearing, and adjustment knob on the outside.

The Espionage featured a teflon coating, in black on this one, which gave a super slick finish. Yoyofactory was the first to ever try this coating on their earlier Grind series. It also featured the rubberized shuttle response system and their Dorothy bearing.
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