Set of 26 activity mats designed for use with medium sized 1 3/8 inch x 2 1/4 inch (3.5 cm x 5.5 cm) wood dominos. Here is a link to the the set I bought and used to design this activity.
Great activity for developing fine motor skills as well as building concentration and patience!
Originally, I tried using cheaper traditional black&white dominos, but they were much smaller and far less stable than the Hape set above. My kinders absolutely love these activity mats, and when they are done, I let them play with the 7 bonus trick add-on pieces.
Feel free to download the sample and see if the mats will work with any dominos you may already have. But I felt the Hape set was well worth the investment. Just a note, you'll want to have each student work at a separate table, so they don't accidentally bump the table and someone else's fall over!