Positive Sensory Stimulation - These fun, colorful and stretchy erasers " " String " " help reduce stress, anxiety and restlessness by helping children and adults to stretch, twist and pull Encourages Focus - Ideal for adults or children with short attention spans, ADHD, autism or ADD, these living sensory toys encourage soothing relaxation. Material, Size and Packaging - These sensory toys are made from high quality specially formulated materials. They are hypoallergenic, non-toxic and BPA free. Safe for children and adults. This pack contains 4 dog elastics and 8 unicorn cords, each about 8 inches long. Versatile Uses - Great for boys, girls and adults of all ages, great for parents, therapists, students and teachers; use them at home, at school or at work. Perfect gift for kids and adults - The best gift for kids and even adults for their birthday, as a stocking stuffer, Easter basket filling and other holidays.