Adhesive Size: 6.8 X 6.8 Cm (2.68 X 2.68 Inches). | | Package Includes 12 Pieces Of Transparent Adhesive. | | The Adhesive Is Strong And Will Not Drill Holes Or Damage Walls. | | Wall Glue Is Only Used On Smooth Surfaces. For Example, Ceramic Tile / Ceramic Tile / Flat Marble / Glass Wall, Etc. | | Installation Tips: Clean The Surface Before Installation, Squeeze The Air Between The Wall And The Sticker, And Wait For 24 Hours For The Hanger. | |