25 lbs of Medium Brood Foundation. The Original 100% Pure Beeswax Foundation. Our lowest priced Foundation. Unreinforced, precision milled, pure beeswax sheet. Precise Even Milled Worker Sized Deep Walled Cells. We recommend cross wiring frames for strength. The foundation size is 4 3/8 inches x 16 3/4 inches and fits 5 3/8 inch frames. Approximately 15 sheets per pound. WARNING - FOR USE WITH WEDGE TOP BAR AND SOLID BOTTOM BAR FRAMES ONLY. THESE FRAMES ARE SPECIAL ORDER NOT IN THE SHOPPING CART.