The Hagoromo chalk, now produced in South Korea, is well accompanied by a professional Korean microfibre eraser (600,000 fibers per square inch), as explained by professor Bayer on his Chalk page.
For more on chalk, there is this older MO post.
The Hagoromo chalk, now produced in South Korea, is well accompanied by a professional Korean microfibre eraser (600,000 fibers per square inch), as explained by professor Bayer on his Chalk page.
For more on chalk, there is this older MO post.
The Hagoromo chalk, now produced in South Korea, is well accompanied by a professional Korean microfibre eraser (600,000 fibers per square inch), as explained by professor Bayer on his Chalk page.
For more on chalk, there is this older MO post.
The Hagoromo chalk, now produced in South Korea, is well accompanied by a professional Korean microfibre eraser (600,000 fibers per square inch), as explained by professor Bayer on his Chalk page.
For more on chalk, there is this older MO post.