Large means that it is approx. 1 1/2" wide, and 5" tall. This size individually priced at $11.00, This listing is for the class of ten of them.
These are a good size for young and old beginners alike. It will make I-Cord from worsted weight yarn very easily, and smaller, or can be used with 2 strands at a time, while also being the smallest size that you can use with really thin strips of fabric, and is big enough to let little ones get coordinated well before going on to other crafts with confidence.
For more involved scrap fabric usage, I would suggest you may want a larger size.
I have an always changing stock of different woods, so you will get a random pick on wood types and colors. Each one will vary on the pattern in the wood grain, but all are just wood, no finishes, waxes, or colorings. These are as plain as wood things like this can be.