Fiberglass frame. Perfect Kids Umbrella Size: The Umbrella is designed for Kids boys and girls ages 4-13. The kids Umbrella Open Approximate Size: 29″” (L) x 38.5″” (W). Unique Double Layer and Reverse Opening and Folding design: Fold the top “”wet”” layer into the under “”dry”” layer when your kids step into your car or going to school or wherever, which prevents water from dripping, keeping floors and cars dry. DOUBLE LAYER FABRIC: Effectively avoids the drip permeation that occurs on most one-layer fabric umbrellas, double layer fabric enhances its windproof effect. Child Safety : Manual with a simple click of the embedded button, the kids can open and close the umbrella in confined space when going to school or playing outside.