simplex brood box (brood chamber) Hoffman hive frames unassembled (ZZ) pine set

10 Simplex unassembled brood box (brood chamber) hive frames without groove, with Hoffman side bars. These frames are made from high-quality pine wood and are manufactured in the EU. Ideal if you want to work without frame spacers in the hive. Simplex frames are the size commonly used in the Netherlands. These frames also fit the spaarkast since it has the same internal dimensions. We recommend using stainless steel wire and 100% copper eyelets to prevent corrosion during formic/oxalic acid treatments.