The Shovel booster allows you to remove one piece or one obstacle layer (e.g., one chain out of two) without using a move.

When you want to use it, tap the Shovel icon and then the piece or obstacle that you want to remove.

This booster is handy for getting access to hard-to-reach pieces or when you don't have enough moves left to complete level goals.

You can buy the Shovel booster when you're already playing a level, get it as a reward for completing game days, or purchase it at the in-game Bank.