The height requirements at Universal Studios (both Orlando and Hollywood) are extremely strict and are non-negotiable for safety and liability reasons. Every attraction with a height limit has a "High-Fidelity" measuring stick at the entrance, and guests who appear close to the limit will be measured by a team member. If a child is even a fraction of an inch too short, they will not be allowed to ride, regardless of how "close" they are or if they are wearing thick-soled shoes. For some attractions, children are measured again at the loading platform to ensure double verification. Universal uses these limits because the ride's restraint systems (lap bars or over-the-shoulder harnesses) are engineered to secure bodies of a specific minimum size; anyone smaller could potentially slip out during the high-speed maneuvers or inversions. If a child does not meet the requirement, families can utilize the "Child Switch" program, which allows one adult to wait with the child in a designated room while the rest of the party rides, then "switch" places without waiting in line again.