The Amulet of strength is an enchanted Ruby amulet. It is frequently used by players to increase their max hit. At level 50 Crafting, players can craft a ruby amulet. With at least 49 Magic, Lvl-3 Enchant can be cast on a Ruby amulet to create an Amulet of strength. This amulet, along with the Amulet of torture, gives the highest strength bonus of any amulet in the game, giving 2 more points than an Amulet of fury.
A trimmed version of the Amulet of strength is available from medium clue scrolls.