In order to make it work well, please install it on smooth surfaces such as doors and tiles, not in uneven places. Made from ABS, cork, linen material, Cork Board is very lightweight, and you can easily insert pushpins into it. Features -Color:Black -Material:ABS, cork, linen -Size:40.30X29.80X1.80cm/15.84X11.71X0.71in - Adopting from ABS, cork, linen material, which is lightweight, with and good workmanship. -This thickness can fix the pushpins protect the wall from the influence of the pushpins. -The creative design is simple and convenient to use, saving you time. A nice helper for you. - It can be applied to change the photos or notes, calendar, and schedule at any time. - When out, you will leave messages to your family on the bulletin board for walls. Package list: 1 x cork board 8 x wooden clips 2 x ropes 2 x expansion screw sleeves 2 x screwed nails 10 x pushpins 2 x traceless hooks