The aquarium temperature sticker is a practical and efficient tool for fish tank owners. Its sleek black design blends seamlessly with any tank setup, while the color-changing feature provides a clear visual indication of the water temperature. This ensures that your fish are always in a healthy and stable environment, preventing stress and potential health issues. Features -Color:Black -Material:PET -Size:13.00X2.00X0.10cm/5.11X0.79X0.04in -Visual temperature change: these aquarium stickers provide a clear visual indication of water temperature changes, helping you maintain a healthy environment for your fish -Broad temperature range: with a range of -10 degree centigrade to 40 degree centigrade, these stickers are for use in different climates and seasons, ensuring versatility -Effortless installation: simply stick the labels onto the aquarium surface without the need for batteries or external power, making them convenient - adhesion: the backing ensures the stickers remain securely in place on the aquarium, even in conditions -Clear temperature display: the color coded temperature indicators are easy to read, allowing for quick and accurate temperature monitoring Package list: 6pcs x temperature sensitive color changing stickers