Features: It is very suitable for hanging wreaths and large decorations on windows_, mirrors or any other clean, smooth, non-porous surfaces. Once applied, it will not be affected by heat or cold. It is made of high-strength transparent- plastic PVC, beautiful, firm and waterproof. Press the suction cups on the surfaces to release the air under the suction cup. After the object safety test, ensure the suction safety. It can only be used on smooth surfaces, such as glass, metal, ceramic- tile, plastic, etc. Package: 10pcs screw suction cups. Specifications: Material: PVC DiameterA: Approx.8.8cm/3.47inch DiameterB: Approx.4.3cm/1.69inch DiameterC: Approx.4cm/1.57inch DiameterD: Approx.3cm/1.18inch Package Includes: 10Pcs Suction Cups note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color of the item.