- These fabulous dual-tipped markers will cover beautifully, for a perfectly smooth and highly reflective metallic finish. Ideal for use on black or dark surfaces where their effects will really pop! This 8.25×3.25x.5 inch package contains six dual-tipped metallic markers in assorted colors. Conforms to ASTM D 4236. Comes in a variety of colors. Each sold separately. Imported.