For the flagship attraction Harry Potter and the Forbidden Journey (found in Universal Studios Florida, Hollywood, and Japan), there is a strict minimum height requirement of 48 inches (122 cm). Regarding body size and weight, there is no official "maximum weight," but the ride uses a specialized overhead restraint system that must be able to click into a safe locking position for the ride to operate. This particular ride is known for being somewhat restrictive for guests with larger frames, particularly those with broad shoulders or large midsections. Universal provides test seats at the entrance of the attraction, which allow guests to check the fit discreetly before entering the queue. Generally, guests with a waist size of 40 inches or more may experience difficulty fitting into the seats. The ride vehicles are "robocoaster" arms that move in 360 degrees, and the restraint system is designed to keep you secure through high-speed tilting and diving maneuvers. If you are concerned about fit, the test seat is a highly recommended first stop to ensure a comfortable and safe experience.