Water Erasable Chalk Board
Even today, billions of teachers and students are suffering from Chalk Dust in their classroom around the world and there are lots f trials and developments to use other dustless methods of communications such as dry erase boards with markers, water-chalk, overhead projectors to keep away from harm of chalk dust.
Now, here is a new revolutionary solution called Water Erasable Board and Dust Free Eco-Chalk, invented and developed at world first to materialize a clean classroom without chalk dust.
PCT patented Water Erasable Board is easy to erase with wet...