Send the following on WhatsApp
Continue to ChatA slate book with "noiseless" slate pencils https://graphicarts.princeton.edu/2017/03/04/a-slate-book-with-noiseless-slate-pencils/
A slate book with "noiseless" slate pencils https://graphicarts.princeton.edu/2017/03/04/a-slate-book-with-noiseless-slate-pencils/