Throwing Rings was a gear in Survive The Disasters 3.
Throwing Rings were added in the Survive The Disasters 3 update and were removed in the following update. They cost 10,000 coins and were available for S ranks. Throwing them to another player gave you 4 Coins and gave them the Ring Collector Achievement, worth four Coins. Every ring dealt 1 damage to enemies, even with upgrades.