Gorilla Gym Indoor Playground brings the fun of the playground indoors. Designed for busy parents and active kids who can't always make it to the playground and don't have a lot of room for expensive play equipment. Gorilla Gym is lightweight, portable, and installs in your doorway in seconds without tools or drilling. Our patent-pending vise-grips and special stabilizers keep the Gorilla Gym firmly in place so your kids can play safely all day. Safely supporting over 300 pounds and certified to ASTM safety standards, kids can swing, climb and use all 5 of our easy plug and play attachments. Gorilla Gym is so strong that even mom or dad can safely swing all day too!