The spaces inside the structure are small and the manufacturing specifications for the structure caution owners to group children playing together so they are similar in size and motor ability. This is safer for the children who may collide or interact in tight interior spaces. We are following these manufacturer guidelines and grouping children 5 years of age up to 10 or a maximum height of 48 inches for drop- in times. This way children will be safer playing together. We are also offering times each day for groups of younger children to play together in the structure.