Simple to use, just draw the shape and cut it out. An excellent product for cutting long strips with a straight edge for small segmented abdomens, round shapes for Shrimp backs, tapered shapes for head capsule covers and Thoraxes etc. Supplied as a 5 x 5 inch (12,7 x 12,7 cm) sheet and very thin. Flytyers Designer Skin will not snap under tension, does not fade and has been stabilized to prevent perishing. Flytyers Designer Skin can be coloured with Edding & Kure colour permanent markers to imitate realistic nymphs when matching the hatch.