1).Steel frame; 2).Magnetic steel board surface; 3).Easy to write and wipe off. 4).Stable and beauty stand easy for moving 5).Using to stand in front of gate of building or hotel for publicize some information 6).Applicable to a variety of environment,outdoor action in particular. 7).Silver,green or milk color are available. 8).The rank from 60cm*45cm to 1000cm*2000cm.