Feature●Shape: Sheet; Material: Felt; Felt Grade: F3; Backing Type: Plain●Thickness: 3/16"; Width: 12"; Length: 12"●Color: Grey; Density: 3 lbs / sq yd; Wool Content: 0.85●Tensile Strength: 400 psi; Durometer: 30-40A; Compression Deflection for 10%: 13 psi●Temperature Range: -80° to 200° F; Vibration Absorption: High; Abrasion Resistance: ExcellentDescription Felt is a dense, pressed wool product and is thicker and more absorbent than fabric. Often used for sealing and gasketing, cushioning, and dampening. Grade F3 felt is firm and has good vibration absorption and abrasion resistance.