Limb Enhancers

Peridot's "Limb Enhancers" are mechanical tools that were formerly worn by her. They appeared on her throughout her appearances, and were shown to be separate body parts from her gem's hologram in the episode "Catch and Release". The limb enhancers (save for her left foot) are currently underwater at the Galaxy Warp, having been disposed by Amethyst.

Arms
The arms can create a tractor beam (used to levitate broken Warp Pad pieces, Pearl, and Steven), and also fire blasts of energy.

Fingers
The fingers can create a touchpad screen, shaped by four fingers and operated with one; generate jolts of electricity; and were also seen to rotate as helicopter blades. The touchpad can interface with Gem technology, including Warp Pad status, the Plug Robonoid (as a lift), remote Gem Warship operation, and for several uses in the Kindergarten.

Legs
The legs increased Peridot's height, but had no abilities otherwise.

Feet
In an emergency, the feet can be separated from the legs by pressing on the side of the foot. Peridot ejected one of her feet during her escape in "Friend Ship". Peridot is able to scale vertical walls with relative ease when using her enhanced feet.