BIC Velleda 1721 is a low-odour, alcohol-based, dry-wipe board Marker that gives more precise application. Its acrylic bullet tip means you can have more control over your writing. As well as this, the tip is blocked, meaning it will not bend or retract under pressure. This makes it ideal for the classroom or home, especially as the ink can be quickly and easily erased seconds or days after use. Available in black ink.