Size is 4CM1.Transparent very strong suction can hang small items suitable for use on any smooth surface such as glass, windows, walls, etc.Suitable for home kitchen, bathroom, office and toy accessories High quality rubber, safe and strong adsorption.2.Easy to install and remove , without damaging the surface.No drilling, no damage to the wall.3.Removable, you can take it off at any time, leave no trace, and can be reused. The invisible effect is good, neat and beautiful4.The suction cups are sized in diameter, all with hooks, and the hooks are removable. It may be deformed during transportation, and after receiving it, it will be restored to its original shape after being scalded with hot water, and it will be stronger.5.Installation method: Slightly wet the wall, and slowly stick to the wall from the edge, be sure to stick tightly, smooth all the places with force and discharge all the air bubbles inside, the air bubbles will easily fall off if they are not discharged. Hang things up after 3 hours of installation.6.Can be used for: ceramic tile, glass, marble, mirror, plastic surface, automobile, metal surface, tempered plate, security door, etc. Not available for: white ash wall, stucco wall, cement wall, wallpaper, wall covering, wooden wardrobe, ordinary wooden door, door frame, etc.