Belt of Giant Strength

From Dungeon Master's Guide, page 155. Found on Magic Item Tables G, H, I.

Description
Wondrous item, rarity varies (requires attunement)

While wearing this belt, your Strength score changes to a score granted by the belt. The item has no effect on you if your Strength without the belt is equal to or greater than the belt's score.

Six varieties of this belt exist, corresponding with and having rarity according to the six kinds of true giants. The Belt of Stone Giant Strength and the Belt of Frost Giant Strength look different, but they have the same effect.