BS Deep Plastic Foundation Per 10 SHEETS, choose Yellow OR Black SUITABLE FOR NATIONAL, WBC & SMITH HIVES, SIZE = 333mm x 199mm Once the combs have been drawn they are virtually unbreakable allowing you to extract faster and if you have hard honey y6ou are able to scrape the frame back to the plastic comb. The foundation does not sit in the grooves of the side bars but simply in between the side bars.
