Large enough area, strong suction, stable adsorption on the glass. Good waterproof performance, water have no effect on the our hook. Can also be used for shower, hanging toiletries, bath towels. Also good for kitchen supplies, pan, cooking spoon and do a good jobs for hanging keys, decorations, banner strips, clothing, etc. More features waitting for you to discover. Features - Color: Black.- Material: Plastic.- Size: 4.50 x 4.50 x 3.00cm/ 1.77 x 1.77 x 1.18 inch.- The suction cup is a non-focus type with little deterioration. Since it is not a clear type, it prevents lens effects. - Please use it for fixing your own heat insulation shade. Lightweight design, exquisite appearance.- It is not a suction cup that has a disjointed shape or is hard and can be easily removed.- The shade can be fixed, and the adsorption state is kept strong for a long time, and there is no elasticity.- Suction cups for car sunshade, these are enough to meet all of your toughest suction cup needs.Packing list: 50 x suction cups Z