HW Pad-Saver® de-moisturizers for clarinet feature our ultra wicking material - the same material athletes look for in athletic apparel to wick and release moisture from the body. HW has spent thirty years researching and improving our fiber to give you the up-to-the minute quality you expect.HW Pad-Saver® swabs are made from a proprietary micro-fiber material that will not shed, shrink, or bleed. Insert your HW Pad-Saver® into your instrument to instantly wick corrosive moisture from pads, tone holes, and bore, extending the life of the pads and saving money on frequent repairs.