Mai's weapons

In battle, Mai wields a variety of weapons. She probably developed the skill of knife-throwing when she would throw knives and darts across her bedroom walls out of boredom. She usually hides her weapons beneath the sleeves of her robe, effectively utilizing the element of surprise and stealth to her advantage. With her reflexes, cunning, and precision, Mai can best a single powerful bender or a multitude of armed or bending capable opponents despite not actually being a bender herself.

Darts
Hidden beneath her sleeves and robes, Mai carries spring-loaded holsters on her wrists and ankles which hold small arrow-like darts that she can fire off at will with a single gesture. These darts have the potential to pierce wood as shown in a battle with Katara. Unlike the rest of her arsenal, Mai's darts have the unique ability to pierce ice without causing it to shatter. Mai often uses her darts when the need arises for speed, maneuverability and surprise, particularly when she is otherwise unable to properly use knives.

Knives
Mai carries red tinted dagger-like knives which she hides inside her sleeves and robes. These are her weapon of choice and are used in almost every battle she has been involved in.

Mai has a variety of knives to choose from, each suited for different purposes. Mai uses streamlined long-bladed knives for speed and added lethality, single-bladed knives, double-bladed knives thrown in a fashion similar to disks, and longer, thicker knives to better immobilize a foe. Several of Mai's knives are actually strong enough to pierce and puncture stone, metal and wood. Mai has shown the most skill with her knives, throwing many knives at once in single or multiple directions. Unlike Mai's, real world stilettos can only pierce wood and bones.

Sai
Mai also has miniature sais at her disposal. They resemble a very sharp dagger with a studded handle except for the fact that they are retractable, able to go from dagger to sai in mid-air or within her grasp. Mai doesn't use her sais often, usually resorting to them for an almost guaranteed kill such as against a powerless Katara and against Toph. Like her double-bladed knife, Mai can use her sai as a cutting edge knife as shown when she sliced through all the tapestries in Chan's home with a single throw.

Other
While Mai does not normally use materials outside her shuriken set, in the comic "Going Home Again", after meeting Jin and hearing Zuko's lame cover up, Mai uses an icicle to impale a fish on top of Zuko's head.

Pictures of most of Mai's stilettos and weapons used to be found on nick.com before the site's revamp, on the Gear & More section of "Return to Omashu". It also shows her spring-loaded holsters, her robe design, and the back of her hair. However, it lacks a picture of Mai's sai, and has a picture of a type of knife only seen in "The Boiling Rock, Part 2", which is one of the first knives she used in the episode. She holds this exclusive knife with her arms in an X-form, along with another one, which is a more commonly seen knife that she uses in many episodes. This part of the episode fails to show much detail on the newly-seen knife. However, on nick.com, full detail is shown. It is possible that Mai uses this knife a few seconds after the first one is thrown; however, when this one is thrown - along with yet another commonly seen knife - the knives are very deformed, probably because they are being thrown so fast and only seen for a moment. It is difficult to tell if it is the same knife; however, there is the same type of button-like circle and long, thin hole coming out of both sides of the circle. There is also some illegible words written on this diagram on nick.com.