Derwent Inktense Pencils can be used dry but mix them with water and the colours turn into a vibrant ink. Once dry, the colour is fixed, allowing you to add to your work - also suitable for fabrics including cotton and silk. Derwent Inktense water soluble pencils are some of the best and most vibrant you'll find anywhere. These pencils can be used dry, but it's when you use them with water that they really come to life and the 'lead' turns into vibrant ink! Once dry, the colours are fixed, and you can safely work over the top of them. This permanency also makes them ideal for working with fabrics like silks and cotton. They can also be used on surfaces such as ceramic and wood. Available in a range of 100 soluble colours and a non-soluble outliner. Round barrel with thick 4mm core. Derwent Inktense combines the brilliant intensity of ink with the versatility of watercolour pencil. Apply pure vibrant dry colour with the pencil and then water with a brush to activate the pigment into bright translucent, ink. Once dry, the colour is permanent and can be worked over with other media. The possibilities are endless, the results stunning. *Please note. Due to differences in computer monitor displays colour samples should be used as a guide only Product Details: Delivers ink-like staining effects with its vivid, yet translucent washes Dries permanently, allowing you to layer up without affecting previous applications Once dry, can be embellished with wet or dry media Highly versatile; can be used on paper and fabric for a wide range of fine art and craft projects. Will stay in place on fabrics when hand washed in cool water (below 30 degrees) with no harsh detergents Round 8mm barrel; wide 4mm core Made in Britain