【Size】: Outer diameter: 300mm; Outer foam diameter: 280mm; 12 inches; Inner foam diameter: 245mm; Inner diameter: 35.5mm; 3-line poke mark cloth side cone; 1 piece 【High Quality】: No water absorption, no moisture resistance. Insulation, heat insulation, cold resistance, and exposure. Antibacterial, non-toxic, tasteless, and pollution-free. Elasticity and high tensile strength, strong toughness, excellent impact, and buffering performance. 【Excellent Performance】: The cone (diaphragm) is the front part of the speaker. When the coil moves back and forth, it vibrates the cone like a drum skin to produce sound and send it into the air. 【Features】: Paper cones have a smoother high-frequency roll-off, but paper cones absorb moisture from the air, changing their mass and damping characteristics. 【Advantages】: Made of high-quality materials. Strong enough to resist scratches and stretching, and the sealed round edges block dirt and protect the coil. It can seal the speaker with the coil, and it is dustproof and moisture-proof. Durable and not easily broken. Instant purchase OK, shipping included ❣️ Please check the [actual photos] for the condition of the product (*ˊ˘ˋ*) #Click here for a list of MY09 shop products Speaker cone speaker paper cone drum paper cone conical outer diameter 300mm outer foam diameter 280mm inner foam diameter 245mm inner diameter 35.5mm speaker accessories speaker subwoofer woofer compatible durable strong toughness moisture resistance 1 piece 27-3 939