Rearth Monster Grip Universal Super Power Suction Technology Windshield Dashboard Car Mount Holder for Galaxy Durable, Solid Easy to install and release on vehicles windshield Suction mechanism works perfectly on plain smooth surfaces such as glass, plain tiles, or other plain surfaces like glossy laminate, refrigerator wall, granite etc. It will not work perfectly with surfaces which are not smooth. For Eg: Textured tiles etc. Please keep this in mind before buying. Its perfect to be mounted on Car Windshield as the same is made from glass.