Features: Stainless steel beekeeping tool with adjustable sliding door design prevents bees escapes and enhances bees ventilation for optimally colony management. Features a 0-5cm adjustable entrance and 30% improved airflow to combat moisture, ensuring bees health in humid climates or rainy. Ideal for both novice beekeepers and professional apiarists managing backyard bees or commercial apiaries with climate adaptive bees requirements. Essential for maintaining bees populations during extreme weather or in damp environment. Corrosion resistant stainless steel construction withstands prolonged outdoor use while smooth sliding mechanism ensures effortlessly seasonal adjustments. Specifications: Component:stainless steel Color: Silver Size:Approx.12.5x3.5cm/4.92x1.38inch Practicality: prevents bees from escaping, while providing good ventilation, suitable for all kinds of beekeeping scenarios, ensuring the safety health of bees colonies. Use scenarios; Bees management: suitable for various types of bees, helping beekeepers better manage bees and their environment. Bees breeding: During bees breeding, it provide bees with a safe and comfortable growth space to improve reproduction rate. Daily maintenance: Check and use anti-stop films regularly to ensures the safety health of the bees colony. Package Includes: 1pcs Anti Escape Sheet note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.