20 inch LCD writing board
Product size: 490*295*15mm
Writing area: 445*240mm
Writing force: 50gf-300gf
Colors choice: Black
Battery item: AAA*3
Baseboard material: Aluminium alloy
Material of pen: ABS
40 inch LCD writing board
Product size: 930*550*15mm
Writing area: 880*500mm
Writing force: 50gf-300gf
Colors choice: Black
Battery item: AAA*3
Baseboard material: Aluminium alloy
Material of pen: ABS
60 inch LCD writing board
Size just for reference, we provide customize service.