Features: Aquariums Suction Cups offer a strong grip, ensuring your aquariums decorations stay without slipping. Reusable and durable, for various aquariums. Ideal for Aquariums enthusiasts, DIY hobbyists, and anyone want to organize their space efficiently, suitable for different users. Perfect for fishtanks, terrariums, or any environment requiring attachment, these suction cups can also be used for cable management in kitchens, bathrooms, and offices. You just need to dry the surfaces, press the suction cup to directly attach and fix these, and use cable Tie to tighten and fix the object. Specifications: Component: Plastic Suction Cup Size 1: Approx.4mm/0.16inch Suction Cup Size 2: Approx.6mm/0.24inch Suction Cup Size 3: Approx.10mm/0.39inch Suction Cup Size 4: Approx.17mm/0.67inch Suction Cup Size 5: Approx.20mm/0.79inch Quantity: 20pcs Package Includes: 20pcs Suction Cups note: 1.Please allow 1-2cm errors due to manual measurement, note that you donot mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.