"Derwent Pencil Extenders, When your pencils become too short to hold comfortably, simply insert them into these handy tools and you can carry on using them - making sure you get the very most from your pencils. This set includes two different sizes of extender - one fits standard 7mm pencils, such as Derwent Watercolour and Graphic Pencils, while the other fits 8mm pencils, such as Derwent Pastel Pencils and Coloursoft Pencils."
