Holbein pencil blender Meltz 35ml :
Holbein Meltz Coloured Pencil Blender, is a liquid medium that can be used over oil based pencils like Holbein pencils, Faber-Castell Polychromos, Rembrandt by Lyra.... to create gradation, effortless blending and gives your artwork a watercolour-like effect. With this great product your drawings will more realistic and refined. Available in 35ml squeeze bottle.
The best tool for this blender is a empty dye liner like Angelus :
https://www.adam-eshop.com/en/empty-marker-and-tips/2305-angelus-dye-liner-fine-sneakers.html
OP-850