ADJUSTABLE BRIGHTNESS - Our tracing light box has three brightness settings to choose from. With just a touch of a button you can choose the optimal setting for drawing or sketching during the day or night. ULTRA THIN LIGHT BOX - Measuring at 7mm thick, this light pad is easy to work on and portable. Comes with rubber pads on the back to prevent it from sliding around on your work surface. ACCESSORIES INCLUDED - Comes with an extra long 11 foot USB cable to give you more flexibility at your home or office. Also includes a power adapter, clip, and 10 tracing sheets to get you started.