thin white mat

Used for small surfaces
and details

medium size white mat

Used for most stitches

thick white mat

Used for big stitches
(such as knots) and
padding

white mat

Used for the fringes, for this
you need to work with 2, 3
or 4 balls at the same time

used for top stitching with the
sewing machine if you don't want
the fringes