Blitz Jewelry Care, Cleans, Shines & Protects Cloth The Blitz jewelry care cloth is an 11 by 14 inch, two ply cloth made from 100 percent soft cotton flannel, folded and sewn. Cloth contains no harsh chemicals or abrasives. Non-Toxic & Environmentally Friendly Do not wash, will remove special cleaning agents. Made in the USA from recyclable material (BPA and phthalate-free) and dishwasher safe