Ark of the Cosmos
Ark of Cosmos
The Ark of Cosmo has the power of gravity
Series Sonic the Hedgehog
First Appearance Sonic Riders: Zero Gravity
Purpose Gravity control
User(s) Jet the Hawk
Description A stone ring that grant the ability to manipulate gravity.

The Ark of the Cosmos (星の聖櫃, Hoshi no Seihitsu, Ark of the Stars) is a legendary artifact that allows the wearer to manipulate gravity.Its usually utilized by Jet.