Pacific Play Tents The Fun Tube 6' Tunnel Tunnel size: 6 ft. x 19 inch - Tunnel collapses flat for easy storage and portability 190T 70 Denier Polyester Taffeta fabric and No See-UM mesh with durable construction for long lasting play and fun Interior padding around hardened spring steel wire structure for safety and playtime comfort Easily wipes clean with a damp cloth and mild soap - indoor or outdoor use Crawling and tunnel play are excellent for muscle and motor skill development in toddlers and children