NL HOME 4-Pack Power Lock Suction Cup Hooks, Vacuum Hook for Flat Smooth Wall Surface Towel Robe Bathroom Kitchen Shower Bath Coat, Yellow STURDY AND STRONG SUCTION: Green suction cup hooks for bathroom and kitchen. Great for hanging wreaths and larger decorations in windows, on mirrors.Hold up to 20 lb (10 kg). Set of 4. Great ideas for holiday decorations, such as Halloween, Thanksgiving, Christmas, and New Year EASY INSTALLATION: Incredibly easy to install. NO DRILLING / NO SCREWS. Wipe clean and wipe dry the surface before use PORTABLE: Each Measures 2.15'' Diameter MATERIALS: high quality ABS plastic and rubber. Strong suction and last long ATTENTION: Only Fit for any NON-POROUS & SMOOTH surface . CANNOT maintain on porous or rough surfaces: Wood, Marble, Fiberglass, Paint wall, Porcelain , Nano Tiles , Plaster and wood , or across grout lines