The APW 2A-83267 Chrome Leg is operated by threading into a compatible mounting point to stabilise and hold equipment in place, and the height can be adjusted by rotating. It has internal threading that interlocks with a 1/4-20 fastener to ensure that it will always be in contact with the floor surface when in operation. This is placed at the corner of commercial foodservice equipment... https://partsfe.com/2a-83267-apw-leg-1h-14-20