This product is an aquarium thermometer sticker. It is made of solid materials. It is safe and durable. It without being easily damaged. It is an excellent aquarium thermometer sticker that can bring you more convenience, allowing you to have comfortable experience. Features -Color:Assorted Color -Material:Liquid crystal, paper -Size:7.30X4.10X0.10cm/2.87X1.61X0.04in -Size:8.30X5.00X0.10cm/3.26X1.97X0.04in -Size:6.00X4.70X0.10cm/2.36X1.85X0.04in -Size:9.00X6.00X0.10cm/3.54X2.36X0.04in -Size:6.00X5.00X0.10cm/2.36X1.97X0.04in -Size:7.00X6.70X0.10cm/2.75X2.63X0.04in -Size:7.00X6.30X0.10cm/2.75X2.48X0.04in -Size:6.60X5.50X0.10cm/2.59X2.16X0.04in -Size:9.50X5.00X0.10cm/3.73X1.97X0.04in - Aquarium fish tank thermometer, made of color changing liquid crystal material. - No need for batteries, unlike traditional temperature measurement device, making it safer to use . - The test is accurate, keeping the temperature of water, and intuitively prompting the level of the water temperature. - indication of temperature allows the owner to set different temperatures for different fish. - Contains various styles of water temperature thermometers that can be used in many different bathtubs, great for aquarium use. Package list: 9 x aquarium thermometer stickers