The model number HES3D-E160 refers to a popular concealed, 3-way adjustable door hinge manufactured by Sugatsune (LAMP). It is part of the extensive HES3D series, known for creating seamless, flush-mount doors that completely hide the hinge mechanism The “E” in the model name indicates that it is an “Easy-Installation” model with a relatively shallow mortise, and “160” refers to its 160 mm length. It is a workhorse model for standard to medium-heavy interior doors