Feature: 1. PRODUCT SIZE: 8 inch paper speaker cone subwoofer cones drum paper with Outer diameter: 195mm / 7.7inch; inner diameter: 36mm / 1.4inch; depth: 38mm / 1.5inch. 2. DURABLE 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. 3. WITH 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. 4. MULTIFUNCTION: 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. 5. PRODUCT PACKAGE: You will receive 2pc speaker cone drum paper and 2pcs paper cap. You can use it after installation, easy to install and use. Specification: Item Type: Speaker Cone Drum Paper Material: Rubber, Paper Product Size: Outer Diameter: Approx. 195mm/7.7in; Inner Diameter: Approx. 36mm/1.4in; Depth: Approx. 38mm/1.5in. Package List: 2 x Speaker Cone Drum Paper2 x Paper Cap Note: All data are measured manually, and there are certain errors in the measurement results.