I had to bring my child to music studio performances, and I let them use these. Child's Ear Protection Earmuffs Color: Popular Blue Used (No box or instructions, just the earmuffs) - Model Name: EARPUFFS for KIDS - Color: Blue - Features: Ear protection earmuffs Age Range: 2 to 10 years old Head Circumference: Fits 48-60cm Weight: 250g Noise Reduction Rating: 21dB Adjustable size Used a few times. There's a rough patch on one side, possibly from tape. I'm not sure how it happened, but the rest of the earmuffs are clean. There are no issues with using them as earmuffs. york shin earmuffs For children, soundproof, kids, noise reduction, sensitive hearing Thank you for looking.