This is an injected molded plastic raised cell sheet coated with 100% beeswax to help bees start drawing cells quickly. The best plastic foundation available. Tested and proven as the ultimate in plastic foundation. Precise deep cell walls. Uniform exact cells.
Fits 5 3/8 inch frames Foundation size is 4 3/4 inches x 16 3/4 inches. Used with wedge top bar or grooved top bar frames.