The 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. Assorted 4 pack Assorted Colours Low odour, pocket size whiteboard markers Alcohol based ink with good erasibility Blocked tip will not bend or retract under pressure Soft tip for smoother writing Acrylic bullet tip gives line width of 1.5mm Low-odour, dry-wipe board Marker Good erasability Acrylic tip gives line width of 1.6mm Blocked tip won't bend under pressure