Items in general, are objects that you can buy at the various shops in the city. They boost your Gladiator in different ways depending on the type of item you have bought. In Swords and Sandals 2 you can bring potions to a battle, depending on your level of Magicka.
Items fall basically in two big categories. Weapons and Armour. Depending on which Swords and Sandals that you are playing (1, 2, 3 or 4) the kinds of Armour and Weapons vary between shops. For example: in Swords and Sandals 3 Solo Ultratus, there are various shops selling diferent types of Weapons, namely Swords, Maces, Axes/Polearms, Guitars, and guns/bows.
In Swords and Sandals 3, sometimes weapons can be found enchanted, this means that the weapon has bonuses on the stats of the gladiator, which depends on the type of item and quality of enchantment. Higher quality enchantments usually require higher level to be able to be equipped, probably because of their strong attributes.
To further know about Weapons, please visit the weapons page: