Wikki Stix are a unique patented teaching tool especially formulated of yarn and wax. Fun and easy to use and endlessly reuseable. Wikki Stix adhere to almost all smooth surfaces with just fingertip pressure; they won't pull apart or break, but cut easily with scissors. Great tool for kids who have not outgrown the need for fun, hands-on learning. Excellent for children with a variety of special needs and perfect where tactile manipulative learning is essential. Great for learning numbers and the alphabet. Adults love to play with them too! Nontoxic.