Aquarium Suction Cup Holder Sucker Pipe ClipFeature:Good quality and durable.Good suction effect,can use in aquarium for holding air line tubing firmly in water.When getting rid of air inside completely,the suction cup can reduce enormous power to stick to the glass surface.Elastic holder clip, well clip air aquarium heater. Filter tube, water pipe etc.You can adjust air line length according to your demand with the item. Description:Color: TransparentMaterial: SiliconeDiameter of Suction Cup: Approx.4m (1.57”)Clip Inner Diameter: Approx. 2.1cm(0.83”)Weight:Approx.6g Package Included:1x Aquarium Sucker SuctionNote:1.The suction cup can produce enormous power and stick to glass surface firmly. when getting rid of air inside completely or wet the suction cup before use it.2.If they are folded during transit, please simply immerse them in warm water(about 40-50 degrees centigrade) for a while. They will work again.3.Due to the light and screen difference, the item's color may be slightly different from the pictures.Please understand. Make sure you don't mind before you bid.4. Please allow 1-5mm differences due to manual measurement.