Features: 1.Fabricated out of high quality plastic, anti-rust, heat-resistant and reliable. 2.Protect the fish in the tank not to be scalded. 3.There are six sections of a heating rod protection sleeve, suitable for different size heating rods. 4.An accessory for fish tank heater. 5.The protective sleeve has a suitable gap design to protect the fish while keeping the heat generated by the heater. Specification: Features: Fabricated out of high quality plastic, anti-rust, heat-resistant and reliable. Protect the fish in the tank not to be scalded. There are six sections of a heating rod protection sleeve, suitable for different size heating rods. An accessory for fish tank heater. The protective sleeve has a suitable gap design to protect the fish while keeping the heat generated by the heater. Specification: Condition: 100%Brand New Material: Plastic Diameter: 3cm / 1.18in Maximum Assembly length: 42cm / 16.54in Weight: 10.75kg Color: Black Package List: 6* Heating Rod Protection Sleeve 2* Suction Cup Notice: Please allow 1-3cm error due to manual measurement and make sure you do not mind before ordering. Please understand that colors may exist chromatic aberration as the different placement of pictures.