[Compatible: These Earphone Ear Cushions are compatible for Bose On Ear QuietComfort 3. Protein Leather: Made of durable and professional-grade protein leather for long-term use the replacement ear Covers have a smooth surface and comfortable touch. Memory Foam:Headphone Replacement Cushions Accessories Made of firmer memory foam for blocking the noise you will enjoy. Enhanced Sound: Memory foam to enhance noise blocking. Guarantee: Headphone Sleeves is thoroughly inspected for defects. 100% money back if not fit or defective!]