Popular Keywords: Montessori Type: Finger Play Instant purchase OK! Made with washable felt. * Finger exercise * Sense of accomplishment when connected * Develops concentration * Easy-to-remember colors, 10-color set 3cm x 18cm (slight variations possible) Wooden button 2cm Photos are for illustrative purposes. Selling similar items. *Buttons may have scratches or stains, but are new and unused. Buttons are sewn on carefully, but please be careful of small children swallowing them. As this is handmade, there may be distortions, misalignments, errors, and double stitching. Thank you for your understanding.