It is a light blue plastic, wide bottom finishing pan which has no riffles, only a unique microgroove texture to the side of the pan which lets you clean that last bit of black sand off your gold.  There is no lip to cause the water to wave up the side as you slide the edge of the pan into the water. As you pull the pan back out of the water the black sand slips gently down the side of the pan while the fine gold stays put.  The pan is 11 inches in diameter with a 7 inch diameter bottom.