kabe Kabe no mi (Wall Wall Fruit)

Name in Japanese (translation): Kabe Kabe no Mi (Wall Wall fruit)
Capabilities: The user can create "walls". These walls are impenetrable except by light and other forms of electron based energies (such as gamma rays and micro waves). The walls take up a 6 foot by 6 foot square area, they cannot be larger, but may be smaller as long as they stay in the form of a square. the walls must be in a single, 2-D plane, so they cannot curve or bend at any point. only one wall may be created at a time. a wall looks like a sheet of shimmering glass with rainbow colors, it can be seen through, but cannot be passed through. To create a wall, the uses must trace a square shape with their palm as if they were a mime, the hand does not need to trace the outer edge of the wall. Creating a wall takes about the energy of running a half mile in 4 minutes. Walls cannot be moved and will only disperse if the user commands them to or they come into contact with salt water.
Type: Paramecia

appearence: shimmering rainbow colors. looks like a sheet of glass.
Pros: impenetrable (except by light)
Limitations: one at a time. 6X6 foot square. always in the shape of a square. no bends or curves, one flat surface. cannot be moved. can only be made if the the hands are in the area where the wall is to be (so walls cannot be made out of arms reach of the user, or within the user)

if it needs additional limitations then please tell me, i am aware that this may be a bit overpowered. any suggestions on limitations are appreciated if it needs more

BTW this is for anyone to use im not gunna use it

If it's always a 6x6 square it's not much of a wall, just a big block. u should make it so it can get longer, but as it does it also gets thinner, and easier to break through

Oh, I must have overlooked this fruit, APPROVED!

it impenetrable so its only 6x6