Thank you for checking out our new KidSole Smart Stretch Strap. Any child who suffers from tights arches or tight leg muscles support issues will benefit significantly from this new product. The Smart Stretch Strap helps your child better stretch their feet and leg muscles. The guided numbers help them easily progress as their flexibility increases over time. Effectively treats Plantar Fasciitis, foot arch disorders, tight hamstrings, tight calf muscles & tight Achilles Tendon. Easy to use stretching device to help kids slowly and steadily improve their flexibility and posture over time. Heavy-duty machine washable construction with KidSole lifetime guarantee. For Kid’s Sizes 1-7. Here at KidSole we never stop listening to our customers. We are always finding new ways to help your kid’s feel better in their shoes. We believe in all our products and stand by our unconditional Lifetime Money Back Guarantee. Thank you for stopping by KidSole today!