KEY
Signature bi-metal yo-yo for Karthik Devaraj
Made to mark Karthik Devaraj's debut at the World YoYo Contest 2025 in Prague, KEY is his signature bi-metal yo-yo by "alternatives", with a 6061 body, stainless steel rims and a second layer of steel pressed into the caps.
Pressing the steel into the aluminum, rather than fitting rings around it, took months of revisions before a factory would make it. KEY is based on the brand's Insomnia, widened to 49 mm with the weight redistributed. Its follow-up is the tri-material UNLOCK.
We ship worldwide from Sweden with both traceable and non-traceable options based on destination.
Packages shipped to the US have import duties and tariffs pre-paid by us, nothing to pay on delivery.


Technical specifications
Appearance
- Body Material
- 6061 Aluminium
- Weight
- 66.1 g
- Diameter
- 56.0 mm
- Width
- 49.0 mm
- Weight Ring Material
- Stainless Steel
- Extra Detail
- Stainless steel pressed into caps
- Shape
- W-shape
Maintenance
- Bearing Seat
- Size C
- Response Type
- 19mm Response Pad
Production
- Produced By
- "alternatives"
- Signature For
- Karthik Devaraj
- Designed In
- Malaysia
- Release Date
- 2025
Packaging
- Package Contents
- 1 × KEY yo-yo



