This feeder simplifies measurement and consumption of multiple minerals for livestock. Center divider creates two compartments for two types of granular minerals. Made of tough, impact-resistant, high-density polyethylene which protects against warpage, stress cracks, and UV damage. Two screw holes for easy installation (screws not included). Measures 9.19 inch long by 5.56 inch wide by 5.5 inch high, holds 1 quart (1 pint in each compartment).