Claybord Line Tool is a needle tool for parallel lines and easy cross- hatching. Metal grip with four tightly set needles. Claybord Wire Brush creates random textures including hair, grass and feathers. Many curved metal wires are set in a metal ferrule on a wood handle. Claybord Scratch Knife Set includes a holder plus one pointed and one curved blade for controlled line drawing. Claybord Fibre Brush is made from fibreglass to create gradual tonal values leaving soft edges. Caution, fibres can cause skin irritation.