These nucs put the profit back in nuc sales! Nucs are lightweight and easy to ship. There is no need for box returns and frame exchanges when cardboard nuc boxes are a fraction of the cost of wooden nucs. Cardboard nuc boxes are wax impregnated for greater durability. Ship flat to save on shipping charges. Nuc boxes make great swarm traps. Place 5- 9 1/8" (23.18 cm) frames of drawn comb in the box. Secure the lid with either the Poly or Rubber Nuc Strap (NB-400 or NB-405 sold separately). Position the box in a tree or other location near your apiary. Use our 1 1/2" (3.81 cm) cap plug (FD-147 sold separately) to seal the entrance when you are ready to move the swarm.