Prolong the life of your pencils with these handy Derwent Pencil extenders. It becomes a writing instrument by making shorter pencils feel more balanced as it allows for a better grip. Derwent Pencil Extender Set lets you use almost every bit of a pencil before having to throw it away. Available in 2 sizes. The silver extender fits larger sized pencils, up to 8 mm, including Derwent Pastel, Coloursoft and Artists Pencils. The black extender is for use with standard sized pencils, up to 7 mm, including Derwent Graphic, Watercolour, and Studio.  Adjustable screw fitting holds pencils securely. Soft touch coating on barrel offers a firm grip.