DCDEAL 2pcs Queen Bee Marking Cage Tube Bottle with Plunger Beekeeping Tools Equipment Material: Plastic, bamboo, sponge Color: Random Inside diameter: approx. 2.8cm; Outside diameter: approx. 3.2cm; Height: approx. 8cm Find the queen and place her inside, gently depress the plunger to hold her against the mesh while marking Package included:2x Queen Bee Marking Cage Bottle with Plunger