Happy Mouth Contour Copper Roller King Dee BitWe love the Happy Mouth Contour Copper Roller King Dee Bit because of the quality materials and design. Excellent bit acceptance can be achieved by this combination of Apple scented space age polymer mouthpiece and pure copper center roller. Pure copper is a soft, warm metal. By using 99. 9% pure copper in the center of the mouthpiece, bit acceptance is improved. The taste of copper encourages horses to salivate and keep a moist mouth. The curved