... marker and dry-erased. Specification: PP film of 50 micron thickness, unit sheet size: A1 size, 12 sheets/box, preselected tear-line, rolling package ... binding, both sides can cling. You can write with whiteboard marker repeatedly, dry erasable.Adopt safe and non-poisonous PP ... up to the EN71-1/-2/-3 standard, a substitute product of traditional whiteboard writing product. The size of this product is ...