Parblo A4S LED Light Pad Ultra-Thin USB Power 10000K Color Temperature & 2000lux Tracing Light Box Light Pad for Artcraft Tracing Ultra slim panel with an thickness of 5mm is made of acrylic material, featuring good transparency and rigidity, and weighs only 0.6kg. Keep pressing the power button to adjust the brightness, whose value can memory for future use. Dual layers of LED provides the ideal brightness while painting, also protects your eyes well Four round cushion button locate at opposite angles, thin and dense enough to get a stable drawing experience One protection film attached on the screen in case of any damages or scratches during the transporation