The multi-purpose QUATRUS R15 ERGON sink rails are made of stainless steel and capped in hard plastic to provide a secure point of contact on the interior ledge of the sink. Hang and dry cloths and sponges, suspend pots and colanders over the sink or use on your countertop as a trivet for hot pots. Neatly stack to one side and save space when not in use. Save highly-coveted counterspace and organize your kitchen workspace in style by adding accessories to your kitchen workspace.