Bold-marking, bright colours are highly visible from anywhere in a classroom. Low odour means less annoying or irritating fumes, especially when students use individual dry-erase boards. Smooth- writing "juicy" ink laydown is non squeaky, more pleasant to use. Bold-marking, bright colours are highly visible from anywhere in a classroom. Suitable for use on Whiteboards Contents: 8 Washable Dry Erase Markers.   Warning: Not suitable for children under the age of 3 years due to small parts which could cause a choking hazard.