As a large creature, you can carry, push, drag, or lift double what a medium sized creature of your strength can physically manipulate.

In combat, you control a 10 by 10 foot space and can squeeze into a 5 by 5 foot space (spending 1 extra foot for every foot of movement taken, suffering disadvantage on attack rolls and Dexterity saving throws, and granting advantage to any creature that is attacking you while you are squeezing into the smaller space). You can be surrounded by up to 12 medium sized foes.

Small creatures can’t grapple you, and you don’t halve your speed when moving small creatures you have grappled. You can wield large sized weapons without taking disadvantage to your attack rolls, your unarmed attacks deal 1d4 bludgeoning damage, and you can use medium two-handed weapons one-handed. You, however, take disadvantage when attacking with a one-handed weapon that is not sized for a large creature.

You also may not wear any armor or clothing not designed for your size. Armor and clothing designed for a large creature costs twice the normal price and weighs twice as much as normal. Finally, you must eat and drink 4 times the quantity of rations required by a medium sized creature.