The Stabilo GREEN BOSS desk set contains four neon and four pastel highlighters all manufactured using 83% recycled plastic. The deskset is also made from 100% recycled plastic making it kinder to the environment. These long lasting highlighters can be refilled. The highlighters fit perfectly into your pencil case and have an incredible four hour cap off time. The highlighter can highlight and underline in two line widths, 2 and 5 mm and for approximately 375m. The highlighters are supplied in a pack of eight.