Pressure-sensitive technology, easy for viewing and graffiti, no radiation, no glare, won’t hurt children’s eyes like other electronic products. No discomfort even after prolonged use, perfect toys for 3-6 year old girls and boys.he drawing pad for kids uses pressure-sensitive technology, the thickness of the colorful line depends on the strength and angle of your stylus. Just click the erase button of the doodle pad to clear the screen in one second. UCIDCI kids drawing tablet design with a the lock/unlock button, click lock key of doodle board to save the content. This product is designed for kids and is even easier to use, perfect preschool learning toys for 5 year old girls and boys.