Education Classroom Cylinder The Classroom Cylinder is designed to help prevent students from locking classroom doors in order to disrupt access, while allowing teachers to enter at all times, thanks to the cylinder mechanism’s innovative structure. Furthermore, pupils can exit the room via a single action thumbturn mechanism on the inner side of the door, so that they are not accidentally locked in by caretaking staff. The Classroom Cylinder is available in various symmetric or asymmetric sizes, and can be supplied keyed alike, keyed different or master keyed. Through our network of selling units, distributors and retail partners, you can learn more about this and other solutions, receive expert advice and custom solutions