25 lbs of Crimp Wired Foundation developed by Dadant & Sons, Inc. copied but unequalled. 9 vertical crimped steel wires radiate strength, perfectly milled cells deep exact walls. We recommend cross wiring to add strength Foundation is 4 3/4 inches x 16 3/4 inches fits 5 3/8 frames. Approximately 12 sheets per pound. Use wedge or grooved top bars.