This is a vacuum suction cup holder with a diameter of up to 5 inches, which can be easily fixed on smooth and flat surfaces, such as window glass, sunroof glass, car front windshield, ceramic tiles, bathtub, etc. With just a few clicks of the air pump, it can firmly adhere to the surface of the object and can be easily disassembled. Most importantly, it can hold tablets, phones, sports cameras, DSLR cameras, and is a very multifunctional holder.