These are some thread screw nut suction cups, carefully made of selected materials, which can serve you for a long time. By tightening the screw caps operation, pulls the sucker and suck on the smooth surface. The suction cup is suitable for surfaces such as glass, mirrors and fish tanks. They are very practical and can meet your different needs. Features - ColorTransparent -Material:PVC - Size: 5.30X5.30X1.80cm/2.08X2.08X0.71in - Excellent bearing performance, hanging items would not be dropped, giving you a satisfactory experience. - Reusable, very practical, , convenient for you to suspend things better and more safely. - Just push and onto a smooth and clean surface, no additional tools required, ready to use. - With great suction, it won't drop easily, no need to worry about the suction cups scratching your windows or damaging the surface. - With a reasonable design, the suction cup is perfect for hanging keys, towels, , string lights, etc. Package list: 10 x suction cups