Derwent Shave 'n' Save Artbar Sharpener (2300593)
Designed for use with the Art bar water soluble wax bars as a sharpening tool, the Shave 'n' Save is also a container that saves your shavings so you can create your own paint mixes. Just add water to create washes of most any hue. Or, sprinkle the shavings over your painting to add creative interest. Includes a glass container with plastic cap with triangular hole.