WORTHER Wood Round Mechanical Pencil 3.15mm - MapleThe WORTHER Wood is very Larry fun, functional, and full of design. Ideal for writing, drawing, sketching, marking and doing the crossword. A natural pen for a natural process. Made from maple wood, this is the round version of the range. It comes with a thick 3. 15mm soft 7B graphite lead and can write on almost any material including wood, metal, paper, plastic glass (using a red lead), x rays (using white). Refill leads available in the following