From Staedtler, the Triplus 334 range of fineliners are available in 20 individual colours & a number of convenient sets. With their hardwearing, superfine, metal-clad 0.3mm tips, they're ideal for sketching, shading, cross-hatching & adult colouring. Filled with vibrant, water-based DRY SAFE ink, the fineliners can be left uncapped for a number of days without incident (minus the neon colours) & any marks can be easily washed from most textiles. Staedtler Triplus Fineliners - Perfect For Adult Colouring