With the exception of some metals and polished or glazed surfaces, almost any material can be marked out with these Faithfull Carpenter's Pencils. The pencil leaves a clear visible line irrespective of material or grain. Due to their flat size, the pencils are prevented from rolling away like other pencils might. Supplied in a pack of three pencils with a specially shaped pencil sharpener. Grade: Medium Colour: Red Use: For general carpentry.