A restraint Most involve a fairly simple mechanism rather like the seatbelts on a commercial airplane
Similar to the seatbelts found in cars, many rollercoasters are using these are restraints
A strap fastened across the body of someone travelling in a car or other vehicle, designed to hold them in place in the event of a crash. The most common type found today in ordinary road cars is the lap sash seatbelt
{i} anchored strap(s) that buckle across the hips to protect a seated passenger from an abrupt jolt (in an automobile, airplane, etc.)
A rather simple device used to help restrain and protect the rider On some roller coasters like the Matterhorn at Disneyland this is the only restraint device, but on many other coasters seat belts are being used in addition to another restraint like a lap bar