Installing the DIY magnetic aquarium cover lid is straightforward and user-friendly. Simply align the magnetic edges with the rim of your fish tank, and the cover will snap into place. This mesh screen top cover is for tanks of various sizes and shapes, offering a versatile solution to keep your fish contained. The durable mesh material ensures long-lasting use while allowing light and air to pass through, promoting a healthy tank environment. Features -Color:Black -Material:ABS -Size:61.50X55.50X0.10cm/24.17X21.81X0.04in -Magnetic safety feature: the magnetic cover securely attaches to the tank, preventing fish from escaping and ensuring their safety -Ventilated mesh design: the breathable mesh screen allows for optimal airflow, maintaining a healthy environment for your fish -DIY fit: the diy installation allows you to adjust the cover to fit your specific aquarium dimensions with ease -Durable construction: constructed from ABS materials, this cover is built to last and withstand regular use without damage -Universal compatibility: designed to fit a wide range of aquarium sizes, making it a versatile addition to any fish tank setup Package list: 1 x Magnetic Aquarium Cover 1 Trim 4 x Corner Cover