YL Big Red and Blue Train with Two Carriage Children's Pop Up Play tent Spacious.Independent open room with velcro-rolled closure and zipper design window for kids to crawl and play. BALLS ARE NOT INCLUDED. Durable and firm. Polyester cloth, high-manganese steel holder with excessive flexibility. Safe and environmental friendly. Meet toy safety standard. Odor free. Easy cleaning with cloth. DO NOT BRUSH IT. Portable. Easy to set up, fold, move and store. Lightweight with a zipper carry bag to pick up. Suitable for outdoor and indoor use. WARNING OF BOUNCING WHEN OPENING IT. Foldable,Durable,Good Systolic Function, Safe and Reliable, Super easy to carry, set and get back