1Function: The original purpose of these cones was to enable bees to easily leave the space between the inner and outer boxes of the hive. However, only working bees are allowed in and out, not queen bees. 2Safe: Chemical free, safe to use around food, kids and pets, and can be used indoors or outdoors. And it doesn't harm the bees and the honey. 3Material: Made of plastic material, reusable, durable and waterproof, easy to wash. And ventilation hole design, conducive to ventilation. 4Practical: Designed to adjust the size of the tap hole in the hive and protect the beehive from the mouse attacks in autumn and winter. 5Cone design: Designed as a cone shape, this tool is used by beekeepers to control the orderly entry and exit of bees, perfect for beginners and beekeepers. Specification Item Type: Beehive Entrance Exit Cone Material: Plastic Weight: Approx. 42g / 1.5oz Product Size: Approx. 4.7x4.7x2.8cm / 1.9x1.9x1.1in Bottom hole diameter: 0.7cm / 0.3in Package List 20 x Beehive Entrance Exit Cone