1、[Protective] Fish tank heater guard can prevent scalding and guard the health of fish's mucous membrane. But will not affect the working effect of the heater. 2、[With Suction Cups] Fish tank heater protector with two premium suction cups, strong adsorption force, can be tightly adsorbed on the tank wall. 3、[Flexible Assembly] Aquarium heating rod sleeve with sectional design, quick and easy to assemble, up to 6 sections can be spliced, adjust the length at will. 4、[Applications] 2 sections of the heating rod sleeve can be used for 25W 50W 75W heater; 3 sections can be used for 100W heater; 4 sections can be used for 200W 300W heater, etc. 5、[Explosion Proof] Our aquarium heater protector is made of premium ABS material, rust proof, explosion proof, heat resistant and reliable.