Sithil's Summer Key
|Sithil's Summer Key|
Used to open locked Treasure Chests. Double click or right-click the key in your backpack and select the chest you want to open.
Sithil's Summer Key is a single-use tool item, available through trading or purchase at the Dota 2 Store. Each key can be used once and will open one selected Sithil's Summer Stash.