Thorne's B.S. Deep Wired Premium Foundation

Top-quality foundation blended from the finest British, Irish, Australian, and New Zealand beeswax.
It is the foundation that has been manufactured by Thornes for almost 50 years.
This foundation is diagonally wired and the one continuous length is embedded into the freshly milled wax at an angle to the cells, eliminating any tendency to sag.
BS Deep wired foundation is used in National, WBC, and Smith standard brood bodies