My Singing Monsters: Air Island Skin Pack

Unlock the Gigacheep Nest Island Skin available on Air Island. Alongside the cosmetic makeover to Air Island, you'll receive the following permanent boosts to Air Island upon purchasing.
* 10% speed up incubation in Nursery * 15% speed up of Monster Coin production * 2x multiplier for Wishing Torch effect

Once an Island Skin has been bought, its Boosts are automatically added to that Island. The Skin does not need to be activated to use the Boosts.

These Boosts only apply to regular Air Island, and not Mirror Air Island.

Note: You will need to exit and reopen your game for the Island Skin to appear in your inventory.

Source: Steam Store Description