Quality, reliable drywipe pens, perfect for teachers and students alike. Bullet tip with 1.5-3mm stroke width for thick and bold lines. Dry-wipeable from virtually all non-porous surfaces such as enamel, glass and melamine without leaving a residue. Suitable for flipcharts and whiteboards. Broader body so is better stuited for quick, less precise work and ideal for young children still developing their motor skills and struggle with a thinner pen. Cap-off technology - wont dry out if left uncapped for several days and ready for instant use. Low odour. Lightfast. Quick drying. No added butyl acetate. Refillable with BTK 25 Ink. 4 colours - Black, Blue, Green and Red. Pack of 4.