The Slayer's Guide to Trolls
From D&D Wiki
Trolls are a fundamental part of D&D games, most adventures that move past the more basic Goblin species run right smack into the Trolls, while technically Giants they are at the lower end of the spectrum, Fortunately their regeneration more than makes up for their smaller size, thus making them a challenge for the parties taking their first steps into the giant fighting fields.
Ferocious and Bestial most parties are taken back the first time they cross a troll. unlike the more 'Civilized' goblin species, the troll is unlikely to wear any armor or clothing, and will most likely be weaponless as well. of course, this is not always a good thing, for the trolls natural claws and teeth all serve the Troll in good stead in battle.
although weighing in at five hundred pounds, trolls lanky form seems frail which belies their surprising strength in their thin limbs. a trolls arms are long, disproportionally so to the rest of their body, and the creatures posture is stooped, dragging its knuckles on the ground as it runs gives the troll a somewhat simian appearance. it's skin coloration belies any resemblance to the simian races, as troll flesh runs from deep moss green to light sickly greys, ofter with a mottled combination of the two. the skin is usually warty and lumpy and from a distance resembles a scaled form. thick hairlike tangles sprout from the top of the trolls head, writhing of their own according in response to the trolls mood. while these movements seem erratic to an outside observer trolls are remarkably perceptive to the moods of other members of their race just by observing the motions of their hair-locks, these growths that appear on the top of the trolls head are the sole hairlike substance on a trolls body.