Dials

Coming from the land of Skypiea, Dials in this manga are shells of various sizes and uses that come from creatures that live near the sky-islands. Some are used to power everyday items such a lamps, stoves, or recording devices. Others have more powerful properties, such as absorbing smells, powering machines (such as the JetSki-like Wavers) and even taking attacks which can then be thrown back at their opponents. So long as the shell is not damaged a Dial can be used practically forever, however there are a few Dials that do not work in the normal blue seas. In Skypiea, Dials make up the basics of Sky warfare and those who underestimate the power of the dials are doomed to lose against them. Usopp gains a number of these dials, which he uses later on in the series.
 * Vision Dial: This dial has the ability to absorb images and "reflect" them as photos.
 * Breath Dial: Produces a burst of wind; larger ones can be used for powering vehicles such as the waver. Smaller Breath Dials can also be used on footwear to give a user improved jumping and help the wearer travel around faster.
 * Heat Dial: A dial that produces heat. Used for cooking and heating up weapons.
 * Lamp Dial: This dial produces light and therefore is used for lamps.
 * Tone Dial: A dial that is able to record and replay sounds spoken into it.
 * Water Dial: Though not seen, it is presumably used to absorb and release water.
 * Flame Dial: A dial that absorbs and releases flames, not to be confused with the previous dial.
 * Jet Dial: This dial causes increased acceleration by realising the air in one quick and powerful burst and works similar to the Breath Dial. It can allow a user to throw an accelerated punch before the enemy can react and Wavers equipped with this Dial are exceptionally faster then Breath Dial Wavers. The creature that made these Dials became extinct hundreds of years ago, making these Dials a quite rare sight today.
 * Ball Dial: This dial releases a puff of cloud that forms into a ball shape upon being released that can be sat or stood on.
 * Milky Dial: A dial that produces a trail of clouds that can be used to travel on by breath dial related vehicles. It can also be used to move the user up into the air, like a rocket, although it is not effective as the Breath Dial for general movement.
 * Flavor Dial: This dial can store smells and aromas, along with other types of gas such as explosive ones.
 * Axe Dial: A rarer dial not found on Skypiea itself, it is used by Eneru's enforcers.  It has the power to absorb and reflect slices. A shield cannot protect against these slices.
 * Impact Dial: A dial that works by absorbing the impact from a force colliding with it, the stored energy can then be released in a powerful blow. Used mainly for fighting where it is normally attached to the hand with string or with a glove.
 * Reject Dial: An extremely rare Dial. it is 10 times stronger then the Impact Dial, but its increased power means it is deadly to the enemy and the user alike.
 * Flash Dial: Works in the same way as a Lamp Dial, however unlike the Lamp Dial it produces light in a quick and bright flash. In battle it can be used to blind someone for a brief moment of time, allowing the user to strike their foe when they are recoperating.