Specification: Material: Plastic + Sponge + Wood Color: yellow, transparent Diameter: approx. 43mm Length: approx. 95mm Use: Find the queen and place her inside, gently plunger to hold her against the knit while marking. Feature: Essential tools for beekeeping Foam pad protects queen Queen bee marking cage. Used to capture the queen bee without hurting it. Durable and lightweight, easy to use Package included: 1 x Queen Bee Marking Cage Note: Please allow 1-5mm errors due to manual measurement. Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same.