E-writers like LCD writing tablets use liquid crystal display technology to create a digital writing surface that can be easily used with a stylus or other writing tool. Moreover, these digital surfaces can be reused multiple times because of the integrated erase function.Is it safe for young children to use the LCD writing pad? We recommend that children over the age of 3 use the writing pad. There are button batteries inside the product, so please do not allow young children to touch the batteries without adults’ supervision ( although we fix it with a screw).