No matter what size you are. This automatic door always fit for your size. "The Etaf door makes users feel like they're aboard a science fiction spacecraft, but the technology used to power it is pure 21st Century. The size of a standard-size door opening, the Etaf consists of about 35 rows of two-inch tall, vertical sliding metal bars that are split down the middle. When a user approaches the doorway, infrared sensors along the top and sides of the door sense a person's height and width. The corresponding bars mirror the silhouette, sliding the metal stripes on the door open just enough to let them through. It's exhibit personalization at its best, with everybody who enters getting their own specific way in."