201 stainless steel metal king isolator is made of 201 stainless steel, which has good mechanical strength and moderate corrosion resistance. The product is formed by CNC stamping, the surface is polished, and the edges are chamfered to ensure safety and easy cleaning. It is suitable for queen excluder and swarming in beehives, which can effectively block the queen bee and allow worker bees to pass freely. It also supports customized size, pores and appearance design.