Material : CPPMeasurement: 45 cm x 200 cmRemovable means you can get rid the sticker on the wall if you don't want it on the wall anymore and it can be used again. Try to avoid sticking it for too many times， otherwise the stickiness might be declinedThe sticker can be placed on the wall， fridge， tile and any other hard surface areaTo remove， you can lift it gently with a sharp tool like knives and stick it somewhere else. It can be used many time if used properlyWaterproof， very easy to wipe off with just a damp cloth and removablePackage includes: 1 piece 45cm x 200 cm board plus 5 chalks