Lyra SuperFerby Coloured Pencils. Lyra SuperFerby Coloured Pencils have a sturdy, highly pigmented, thick, break-resistant lead. They are 17,5 cm (6.89 inch) long and have a rounded triangular barrel, making them well-suited for smaller hands. The barrel's shape encourages proper grip, and the colours inspire the artist within. Cardboard box, 12 pencils, length: 175 mm, diam. 10 mm (length: 6.89 inch, diam. 0.39 inch), lead diam. 6.25 mm (0.25 inch), unlacquered.