I purchased the slightly higher priced stools made of wood because they are lighter  than MDF stools knowing youngsters would be dragging the stools across the floor.  Well made and I am very happy with my purchase.  The grey perfectly matches the veining in my countertop.  What really impressed me is the floor protector pads are a sturdy plastic and have a recessed screw to attach them, not the flimsy plastic ones that are glued on the legs.