AROMA TREES Professional Strength Suction Cups 45mm (Large - 10 Packs) Without Hook

For more info:Head(Top) of knop 1.5cm(diameter) and Neck of knop is 1cm(diameter).
Excellent Value. Don't be fooled by more costly competitors that offer an inferior product at a higher price.

Suction cups may be something you don't give much thought to on a day to day basis, until you need them. And when you need a suction cup you need it to do its job at the highest level of performance. This top level of performance is exactly what you will get with the 10 pack of Aroma Trees Professional Strength Suction Cups. These high quality suction cups offer the best value and performance out there. Whether you need them for an outdoor camping adventure, an office organization project, or hanging home décor, Aroma Trees Professional Strength Suction Cups will meet your needs and exceed your expectations.

Instructions:
1. Select a slick, smooth surface on which to mount your suction cup such as glass, metal, ceramic tile, plastic or similar surfaces.
2. Prepare surface by assuring the surface is clean, dry, and above 40 degrees F.
3. Press suction cup onto surface to release any air from underneath suction cup.
4. Test objects for security to assure suction is secure.
Note: it can be helpful to periodically "burp" the suction cup to release any air that may become trapped underneath cup.

. *For best results, surface should be above 40 degrees Fahrenheit at time of application.