The Level chair can be hooked over any table. To ensure it doesn't slip, or scratch the table top, the underside of the seating shell has an anti-slip strip (Level-LuPo) or area (Level-VF). 

When several stools are stacked on top of one another, the anti-slip strips - or area - also separates the individual seating surfaces. This prevents the formation of pressure points and protects the chairs from potential damage. 

Important: If the chairs are to be stacked, foot supports must be engaged in the top-most hole, referred to as the park position.