This feeder holds a standard 4 lb salt or mineral block. Raised ribs and drainage holes keep blocks dry. Contoured mounting plate
has holes to allow for permanent mounting (hardware not included). Made of tough, impact-resistant, high-density polyethylene which
protects against warpage, stress cracks and UV damage. Measures 9.31 in L by 6.06 in W by 5.56 in H, holds one 4 lb salt block or 1
qt dry material (will not hold water). Made in USA.