CAUTION: The suction cup only work on Glass, Mirrors, Porcelain tiles, Acrylic/Plastic shower inserts, Stainless steel, Quartz, Laminate, and other smooth and non-porous surfaces. Name: Wall Hanging Nail-Free HookMaterial: ABSColor :Beige,Gray,Pink,GreenSize:7*6cm/2.75*2.36"Package include:1x HookNote:Due to hand measure, the size may have 1-3 cm errorDue to Different Monitor, the color may have differencePackage included:2/4pcs * HookIMPORTANT NOTE: Please follow the instruction to install and leave for 24 hours before use.