About this item Fit for 10inch Loudspeaker Speaker. Inside Diameter: 180mm, Convex Inside Diameter: 195mm, Convex Outside Diameter: 225mm, Outside Diameter: 246mm This rubber is made of quality rubber, pliable, anti-aging and , same surround that professional reconers use Good replacement for , HiVi speakers. Please clean glue remains before install the new rubber Exquisite craft, wear-resistant, help to get nice audio effect for low pitch sound This perforated rubber is ideal for speakers repair or DIY. Easy to install. Great for speakers repair or DIY