Lyra Giants Pencils are made using highly pigmented, extra thick, break resistant cores which last up to 3 times longer than regular coloured pencils. This produces ultra vibrant, lightfast, smudge proof and water proof results. Each is extra thick and break resistant, with a 10 mm diameter and have a smooth textured hexagonal shape which is comfortable to hold and use. Lyra giant pencils are perfect for drawing, sketching, designing or any other art and craft activity. Each pencils is highly pigmented and delivers vibrant, smudge proof results.