Hey Melissa
No, but they can come in handy for other sections of the install (tile to floor or corner transitions, borders, and other areas needing adjusted
We will include 50 or so of them with a kit purchase on our site.
They are reusable and typically is enough to complete a bathroom install
https://shop.bathroomrepairtutor.com/collections/tile-leveling-systems/products/t-lock
thanks
steve
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