Solar Lid-Light -Fits any mason jar. Use these lights outside or inside. Water-resistant solar cell, replaceable and rechargeable battery, and bright LED are tucked inside this standard size mason jar lid. Jar is not included.
The answer may surprise you. A must read for parents of young children, to ease your mind and stress at meals. ^^^ This has an eating "cheat sheet" which wonderful breaks down different general portion sizes and really makes me feel better.