Our innovative and unique convertible 4-way Queen Mating Nuc Box comes assembled and is handcrafted with solid 7/8” thick pine wood. 2 Separate Nuc Boxes are in the kit and have the removable center wall so you can convert it for standard size frames if needed. The kit comes with 4 mini inner covers but our standard 4 frame inner cover will also fit on the box when using full size frames. Also included in each kit are 16 mini frames with wax coated acorn foundation. You need to purchase the top cover separately.