This Refill Extension ring (D) 29mm fits all markers of the Molotow 400

without smudges or drying time

0mm tip in one end and a 3

great for both details and filling smaller areas

tombow empty water brush pen broad flat hidden-product This Refill Extension ring (D)The Tombow Empty Water Brush Flat, Fine, is a refillable brush that makes working with water based media simple and flexible. The water flow is controlled by gently squeezing the barrel, giving you smooth washes, subtle blending, or precise details depending on how hard you press. It comes with a protective cap, making it easy to carry around without leaks. Perfect for pairing with Tombow ABT Dual Brush Pens or any other water based colours, its great