Outset 76224 Grill Plank Soaker Clips, Set of 2 3 x 2.5 x 2.5 inches Made of durable Polypropylene and 1OO% silicone suction cups Set of 2 clips, will fit any size plank Suction cups secure planks to the bottom of sink or container, keeping planks submerged Clips keep planks submerged and separated to allow water to flow between planks