Four-inch depth complies with A.D.A. and ANSI A117.1 Handicapped accessibility. Oversized hinge and safety stop system. Safe and convenient sturdy child protection strap. Multilingual instructions, integral diaper bag hooks, easy opening and closing. Deep concave changing surface. Tamper proof hardware. Fully sealed polyethylene components allows easy cleaning. Smooth exposed surfaces and concealed pneumatic gas spring mechanism. Built-in Liner dispenser accepts standard multifold towels.