This is the world's smallest multi-colored mini crayon set. It's approximately 5cm tall x 10cm wide. I bought it at the Museum of Fine Arts, Boston in the United States three years ago. I haven't used it except to check if it can draw. It draws well! Immediate purchase is OK. - Product Name: World's Smallest Crayon Set - Brand: ToySmith - Colors: Multi-color (Blue, Green, Yellow, Red, Purple, Brown, Orange, Black) - Target Age: 5 years and up - Size: Mini size