853996 Nya Key Chain is a The LEGO Ninjago Movie key chain released August 2017. It includes a Ninja Force Nya minifigure.
LEGO.com description[]
Keep a ninja hero nearby at all times with THE LEGO® NINJAGO® MOVIE™ Nya Key Chain. Attach this minifigure on a durable metal ring and chain to your keys or backpack and fend off all threats to NINJAGO world.
- Features THE LEGO® NINJAGO® MOVIE™ Nya minifigure attached to a durable metal ring and chain.
- Attach it to your keys or backpack.
- Minifigure is not detachable from metal chain.[1]