Pack 2 pieces. Restore all of your sweaters, clothing and more to 'like new' condition. Our fine pumice stones rejuvenate and return the luster to everything that has pilled. Pilling and balling occurs from abrasion, when clothing brushes on other clothing or harsh surfaces, and from laundering and dry cleaning. Just lightly brush across the garment to remove pills, fuzz and balling. Safe to use on most fabrics.