Features 1.SIZE INFORMATION: Subwoofer speaker drum paper has an outer diameter of 156mm / 6.1in, an inner diameter of 26mm / 1in, and a height of 30mm / 1.2in. 2.SEALED ROUNDED EDGES: Paper speaker cone is made of high grade paper. The sealed rounded edges are strong enough to resist scratching and stretching, which blocks dirt and protects the coils. 3.RUBBER SURROUNDS: Subwoofer cones drum paper with rubber surround. When the coil moves back and forth, the driving cone vibrates like a drum skin, emitting sound and entering the air. 4.FEATURES: Paper speaker cone has a smoother high frequency roll off, but the paper cone can absorb moisture from the air, which changes its mass and damping characteristics. 5.EASY TO INSTALL AND USE: Subwoofer speaker drum paper is easy to install and use, you will receive 1 speaker cone drum paper and 2 paper caps. specificationItem Type: Speaker Cone Drum Paper Material: Rubber, Paper Size: Outer Diameter: Approx. 156mm / 6.1in, Inner Diameter: Approx. 26mm / 1in, Height: Approx. 30mm / 1.2in Color: Black PackageList 1 x Paper Speaker Cone Drum Paper 2 x Paper Cap NotePlease allow some error due to manual measurement.