Chip Carving Knives Set of 3 knives with leather strop and polishing compound is all you need to create the intricate geometric or freestyle patterns, carve letters and more. Lettering is very important part of the art form. With these wood carving knives you can carve the name of your sweetheart, relatives or friends on the product you make and personalize it, make it unique. A bar of polishing compound and leather strop are included to keep your blades razor-sharp.