Simple Questions / Simple Answers (Gens 1-7)

[LemonEnby]

as said in the title: Is the smoke ball item one time use?

I'm currently shiny hunting in SS and am using a lower level pokemon with static to combine the better electric encounter rate with the repel trick, but this means escape is not guaranteed so i have to switch out to run. i know that the smoke ball allows escape when held, but is it used like a berry or is it unlimited like a poison barb or hard stone?

I would test it myself but I'm not at a point where I can obtain one, and don't want to move on till i get this shiny

Thank you in advance!!