Fnova Soundproof Earmuffs, Noise Reduction Rating 26dB Free Size for Children, Foldable Used only once and stored at home. Wiped with disinfectant wipes. Perfect size for toddlers to lower elementary school children. [Specifications] (From the purchase site) NRR: 26dB Product Size: 11.50 x 10.00 x 11.50cm Item Weight: 195.00g Head Size: Up to approximately 50cm~60cm. ※There are slight marks on the left and right headbands due to being folded for storage. Please check the 3rd and 4th images. Please purchase only if you understand that this is a used item.