Super Kick line of bass drumheads is an industry best seller and a favorite among those drummers, drum techs and recording engineers who want a musical,controlled bass drum sound without the use of blankets, pillows or external muffling.The patented "Floating Muffling System" uses a narrow band of acoustic felt for a pre-dampened, yet natural sound. • MFSKU TCSKII20 • UPC 659007005213