Aquarium Suction Cup Clips Airline Tube Holders Clamps for Fish Tank 19mm 20Pcs Check Valves Customers can judge the power

Customers can judge the power of the device when they can't measure and compare:

5 x 20mm / 3

1 x Lab Beaker Tongs

Package Content: 10pcs x Knurled Hex Socket Head Bolt

Inner Size: 255*175*55mm/10

Aquarium Suction Cup Clips Airline Tube Holders Clamps for Fish Tank 19mm 20Pcs Check Valves Customers can judge the powerDescription: Great for 19 22mm Outer Diameter airline tubing Suction cups are made of soft plastic clear material which will stay firmly either outside or inside the tank with water. A necessity for setting up an air pump. Each suction comes with one clip. If they come apart, just push the clip back into the suction cup. Feature: Easy to use Come in handy Durable and Reusable Strong suction force Specification: Product Name: Aquarium Suction Cup