Accessibility and precision work together here. The bottom belt sits at 21.5" from the floor, inside the sweep of a white cane, so the barrier is detectable before contact. The magnetic mount holds each post on an adhesive stainless steel floor plate, keeping lane geometry exactly as designed with no bolts and no core drilling. The 5.5" diameter, low-profile base keeps the footprint tight in narrow lanes at a service counter or an entry. At closing time, posts lift off their plates in seconds and the floor scrubs clean with nothing in the way.