Item Type: Speaker Cone Drum PaperMaterial: Rubber, PaperProduct Size: Outer Diameter: Approx. 126mm/5.0in; Inner Diameter: Approx. 26mm/1.0in; Depth: Approx. 25mm/0.98inPackage List1 x Speaker Cone Drum Paper2 x Paper CapAll data are measured manually, and there are certain errors in the measurement results.1PRODUCT SIZE: 5 inch paper speaker cone subwoofer cones drum paper with Outer diameter: 126mm / 5.0inch; inner diameter: 26mm / 1.0inch; depth: 25mm / 0.98inch. 2DURABLE MATERIAL: The paper speaker cone drum is made of high grade paper, strong enough to resist scratch and stretch, a sealed round edge would block the dirt and protect the coil. 3WITH RUBBER SURROUND: The speaker cones with rubber surround(diaphragm) is a front part of the loudspeaker. When the coil moves forward and back, drives the cone like a drum skin vibrating to make sound and into the airs. 4MULTIFUNCTION: The drum paper has a smoother high frequency roll off, but the paper cone can absorb moisture from the air, changing its mass and damping characteristics. 5PRODUCT PACKAGE: You will receive 1pc speaker cone drum paper and 2pcs paper cap. You can use it after installation, easy to install and use.