Wikki Stix are a unique patented teaching tools 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 wonm'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. Nontoxic.