Features: brand new and high quality Digital LED display, the adjustment accuracy is 0.5°C or 1°F, and the display accuracy is 0.1 °C, simple operation. Made of nichrome wire, durable and safe. Mini size, saving space in the fish for tank, compact and beautiful. Suitable for fish tanks, mini tanks, for turtle tanks, horned frogs, pet drinking water, etc. USB heating rod, the temperature can be adjusted from 18-34℃, automatic power off when the temperature exceeds 36°C. Specifications: Material: Nichrome Wire Color: Black Size (Approx.): 5.5x2cm/2.17x0.79in, LED Display 6.5x3cm/2.56x1.18in Weight (Approx.): 140g Package Includes: 1 x Mini Aquarium Heater note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!