If you are creating all over one colour intricate molds, having a smooshing brush is your best friend. Just pour in a small amount of compound and use the brush to completely cover and smoosh into all the crevices of the design. The perfect blend of goat hair for softness but stiff enough to get into every spot -then your cast will have every detail – yay! Also perfect for applying Sealer. Medium Size is 17.5cm.