1. The difference between the classic suction cup and the super suction cup: the super suction cup features a layer of soft black MOS polymer sealant, which automatically fills the rough space in the 1 mm gap, rotates the lock and no longer has to worry about whether it falls off. . 2. Advantages: quick installation in 5 seconds, 8 years long-lasting adsorption, moisture and water resistant, not afraid of temperature changes. Automatically fills the rough surface one millimeter from the bump (very powerful feature), 2 3 times increase in adsorption, unique 60 degree locking design. 3. Can be washed in tap water, repeated use. 4. No need for punching, nailing, gluing, waterproof and moisture resistance, very strong adsorption force that can be dismantled and reused, and there is no problem in humid environment. 5. Immediately lock the vacuum cleaner, you can use it indefinitely. You can also perform the factory setting one-turn recovery. Just like the new one, turn it gently and hear the sound, and the vacuum is locked Just suck, lift is no longer a problem, turn left, press, then right, start restoring original factory settings, also called vacuum adjustment, just like the new one.