MagiDeal Pack 10Pcs Plastic Queen Bee Cages Isolator Beekeeper Beekeeping Tools Essential tools for beekeeping. This Queen Cage with large overall opening and secure closing mechanism for easy use. Overall Size(Closed): Approx.65 x 29 x 15mm/ 2.5 Tube Outer Size: Approx.23 x 12mm/ 0.9 Material:Plastic