The Staedtler Single Hole Tub Sharpener is a single hole for standard-sized blacklead pencils. It is specifically designed for the special properties of graphite and coloured pencil leads. colours may vary
The Staedtler Double Hole Tub Sharpener has a lid with a safety lock to avoid accidental opening. It helps quickly sharpen your writing and drawing pencils.
The Staedtler Double Hole Tub Pastel Colour Sharpener is used for standard-sized graphite pencils up to 8.2mm with a sharpening angle of 23° for clean accurate lines and thick graphite & coloured pencils up to 10.2mm with a sharpening angle of 30° for broad, soft lines.