E-School Supplies Sdn. Bhd. is a Malaysia and Hong Kong joint venture company specialized in manufacturing and marketing of Innovative and Eco-Friendly products for schools, for students and kids. We manufacture patented dust free Water Erasable Chalk - Eco Chalk, Water & Peel Off Eco Board Pen, and Water Erasable Chalk Eco Board Film. Eco Chalk is a no-harm, no-toxic water soluble dust free which is made by natural ingredients.