Wikki Stix Stem Pak
Details
Made of yarn that has been coated with non-toxic wax, Wikki Stix can be formed into any shape, plus they stick to each other without adhesives. The Stem Pack includes 3 ft. long stix in 9 different colors - 108 ft. in all! Comes with step-by-step illustrations of how to create a DNA double-helix, plus 20 more additional science and math products.