While wearing these gauntlets, your Strength score changes to 25.  The item has no effect on you if your Strength without gauntlets is equal to or greater than 25.

Grow: You may use an action to grow two size category larger for 1 minute.

Everything you are carrying and wearing also increases in size for the duration. When rolling damage for weapons enlarged in this manner, roll an additional 2d6 of the weapons damage type

You can use this ability twice per long rest

Titan forged: As a bonus action while huge or larger you can gain the power to maintain a size category of huge for upto 24 hours and gain the powers of a titan. While under this effect your size remains huge and magic cannot reduce your size (your size can still become larger), your hit point maximum increases by 100 (you gain hit points equal to the amount), In addition, the reach of your melee attacks increases by 5 feet, Finally when rolling damage for weapon based attacks while enlarged in this manner, roll three times the normal number of dice; for example if you were to roll a longsword attack, Instead of rolling 1d8 you would roll 3d8 instead. This ability lasts for up to 24 hours or untill it is ended as a bonus action. 

Once this ability is used, you cannot use it again for 24 hours after your size goes back to normal size.

Notes: Set: Strength Score, Warforged , Buff, Belt