Dad's Dumbbell is an active item in Foks' Booster Pack, a mod for The Binding of Isaac.

Starts discharged.

While heldSets Isaac's maximum speed to 0.5. The speed cannot go above this point for as long as the item is held.

On use +1 flat damage.
Increases Isaac's size by +25%.

This item contributes towards the Stompy transformation. Collecting 3 items from this set will grant Isaac the ability to destroy rocks on contact and a chance to spawn rock waves when taking damage.

Dad's Dumbbell can be found in the following item pools:

The following tags are applied to this item:

The following special synergies and interactions for Dad's Dumbbell have been documented.

* Note that not all possible synergies and interactions are listed here.

• Download Foks' Booster Pack from the Steam Workshop.