Product: Felt Strips & Rolls Material / grade: F13 Grade Wool Felt—Adhesive Backing Size: 2" Wide Wool content: 75% Thickness: 1/4" Color: Gray Hardness: Durometer 20A Temperature range: -80 to 200 Compression pressure: 3 Adhesive backing: Rubber Adhesive temperature: 0 to 180 Roll length (ft): 50 Tensile: 75