The LCD writing tablet use 16/25 centimeter eye protection material screen. The screen of drawing board is completely safe via the test: no glare, no radiation,no ink, no dust, paper-like vision, which can protect your kids' eyesight and keep them away from chemical pigments and dust that will stimulate their skin and lungs.the lines are colorful, clear and eye-catching. It is the best 3 4 5 6 7 year old boys girls toys.