OdorlessPVC material, non-toxic, suction cup hook features excellent quality, more durable and environmentally friendly, and can show good water resistance Powerful suction & No MarkLeaves no stains on the wall/glass, the 70mm vacuum suction cup is larger than hooks on the market, giving you excellent support, providing antifreeze function and preventing the suction cup from hardening during use when the temperature changes Tool-free installationUsing the vacuum principle, easy installation without damaging the wall. Simply pull the hook down by pressing the center of the suction cup to deflate. ATTENTION: Hook sticks very well to surfaces smooth and non-smooth, not on tile or lightly textured stoneware surfaces, MAKE SURE YOUR SUITABLE SURFACE BEFORE PURCHASING Wide usage & ReusableHook can be removed at any time, change position after washing the suction cup, wipe the wall surface and reattach, perfect for hanging Christmas decorations/bathroom accessories and Kitchen as a wreath, door sign, bathrobe, tea towels, raclette etc