TeeWorld Classic 555 Timer Circuit Diagram. Unisex T-Shirt 100% Ring Spun Cotton by Next Level, Bella+Canvas, or Hanes; Soft and Comfortable. Designed and Printed in the USA by TeeWorld using High Quality Standards: Safe Inks; Graphic Design has a Soft-Feel to the Touch; High Quality print (This is Not a Iron-on Logo or Heat Transferred Image). This Design is also available in Tank Tops, Vnecks, and Long Sleeve Tshirts for Men and Women; please visit TeeWorlds storefront here in Amazon. Exclusive Novelty T-Shirts with Popular or Trending Designs available in men, women, and youth sizes. Please visit our store for more great apparel! Great for a gift or for yourself! Perfect for birthdays, Christmas, Hanukkah, Valentine's Day, Anniversary, and everyday gift ideas.