Description:Black 12 inch Speaker Surround Decorative Circle Repair Foam for Bass Woofer HornSpecifications:Material: FoamInner Diameter: 21.5cm (8.5 inch)Outer Diameter: 30.5cm (12 inch)Weight: About. 13gColor: BlackFeatures:Protect your speaker、 dustproof、let it more clean.Decorate your speaker、 make it more attractive.To strengthen the bass effect、 make your speaker sounds good.Package Includes:1x 12inch Speaker FoamMore Details: