"Sample pots" refers to small containers or jars filled with a small amount of a product, typically used for testing or trying out before purchasing a larger quantity. Full definition
Create an eye - catching wall feature by giving picture frames a new look with leftover sample pots of paint. (idealhome.co.uk)
I always recommend buying sample pots first because you never really know what it will look like until you see it in your own light! (jennakateathome.com)
We always recommend the use of sample pots for testing. (lauraashley.com)