Size and Quantity:Large Size 11.7in X 9.6in / 24.5cm X 30cm Can Be Reused.Extra：1 Water Color Pen. | Easy to Write or Clean:Coating Material More Easy to Erase Without Leaving any Marks | High-Quality:This Acrylic Film Movie Directors Can Be Opened At an Angle of More Than 180 °.Built-In Magnetic Strip, Professional, Resonates When Clapping. | Widely Used:Widely Used: This Acrylic Film Director Partition is Very Suitable for Film Shooting, MV Shooting, Creative Video, Delayed Photography, Etc. | Note: Do not Use Oily Pen, Which Will Not Be Erased When It is Dry Please Use High Quality Watercolor Pen or Marker. After Use, Please Pay Attention to Cleaning.