This product would not hurt your wall surface because of it is a punch free self-adhesive hanger hook. Rotatable design is convenient for you and strong stick wall hook, can be stuck on smooth surface for hanging things. Hanger hook made of high quality ABS material, durable and anti-deform. Hook hanger's diameter is 5.8cm. Wall hook is very suitable for bedroom, kitchen, household, toilet etc. Item Name: Hook Material:ABS Size: Grey: 7.1cmx6cmx6cm/2.8inx2.36inx2.36in Blue: 7cmx5.95cmx1.85cm/2.76inx2.34inx0.73in Green: 7cmx5.9cmx1.9cm/2.76inx2.32inx0.75in Pink: 7cmx5.95cmx1.9cm/2.76inx2.34inx0.75in Beige: 7cmx5.95cmx1.8cm/2.76inx2.34inx0.71in Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 X Hook