Good Performance: The aquarium suction cup has strong adhesion, it can be stuck on the aquarium surface perfectly. The clip of which can fix the heating rod or water tube in the clean position firmly. It does not fall easily. Safe Material: The aquarium clip suction cup is made of high quality plastic, it is safe and environmentally friendly, it does not affect water quality, durable, it can be used for a long time. Easy to Use: The aquarium suction cup holder clip is easy to install and remove, you just need to press it on the surface you want to stick and attach the heating rod with the clip. And It can be easily removed by pulling it outwards. Product Size: The size of the black aquarium suction cup is 3.4cm in width and 4cm in height, and the diameter of the clip is 2.4cm, it is suitable for heating rod or water tube up to diameter 2.4cm, it is small but practical, and it does not affect beauty of the aquarium. Wide Uses: The plastic aquarium suction cup is suitable for aquariums,