4B oeptima pencil for children to start a practice of writing presentation cards of products and numbers. Children are able to naturally correct grip shape, the shaft is the thickness triangle. The position is to be stable with length from the beginning, even with a small part it is a little short 15 centimetres. Because the shaft is thick, you will need a dedicated Kids Pencil Sharpener that is. Kumon children's pencil series has 6B · 2B coloured pencils, plus the 4B. Please choose according to the size and the presioen pen of the hand. Baby Pencil Sharpener dedicated to Amazon , or Kids Pencil Sharpener is required .