Rear Your Own Queens Using These JZs BZs Type Queen Cell CupsFeatures: Smoky color enables superior visibility of larvae Elliptical pushpin, which tightens as you turn it in the cell bar Mounts easily in most grooved top bar framesUse:If you are interested in rearing your own queen bees, these JZs BZs Type Queen Cell Cups are just the cups for you. These wide base cell cups are the best selling cups in the world. Their smoky color contrasts with any larvae, giving you great visibility when grafting. They are perfectly designed to mount easily in most grooved top bar frames.If you are looking for other equipment for rearing queen bees, be sure to check out our high-quality queen clips, which come inmetalandplastic, or our queen beemarking pens. We also carry a varietyofqueenexcludersto suit your needs.[tab]50 Each Weight .04 lbs Dimensions 4.5 3 .25 in100 Each Weight .25 lbs Dimensions 7.4 4 1 inAmount 100 Each, 50 Each