Fountain pen nib polishing kit. Tune up your fountain pen by polishing the nib and flossing the tines. Kit comes with 2- 6x6" sheets of Mylar abbrassives 3 micron (Rose) &. 0.3 micron (white) mylar abbrassives. Can be used wet or dry, plus 2 - one inch square brass nib floss sheets. No instructions included. Use this kit to smooth out your pen's nib.