853100 Zane Keychain is a Ninjago: Masters of Spinjitzu Keychain that was released in January 2011. It includes a Zane minifigure.
LEGO.com description[]
Ninja Zane guards your keys with the power of ice!
Guard your keys with the stealth of a spinjitzu master! Zane is on guard with his stealthy sixth sense and the power of the ice element. Protect your keys or backpack with the force of this fierce Ninja!
- Sturdy metal key chain includes authentic LEGO® Ninjago minifigure and plenty of fun!
- Use as a backpack charm!
- Makes a great gift![1]