Features: This is a seismic isolation suction cup with a highly adhesive gel and a compression lever for strong suction. It protects against earthquakes with three seismic isolation structures that absorb shaking: 1. Seismic isolation by pressing with a sponge. 2. Seismic isolation by absorbing impact with a spring. 3. Generous seismic isolation suction with highly adhesive gel. It can withstand a magnitude 7 earthquake (vibration tested for 30 seconds by a public institution). This suction cup type is installed on a TV stand and is easy to install. It is resistant to slippage and detachment, and requires no drilling or screwing, and will not cause scratches. It can be installed on rough surfaces as long as the material can maintain a vacuum.