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 NewMaterial: PlasticDiameter: 3cm / 1.18inMaximum Assembly length: 42cm / 16.54inWeight: 10.75kgColor: BlackPackage List:6* Heating Rod Protection Sleeve2* Suction CupNotice: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..