99% cut, 4-layer non-woven fabric mask, 3D立体 structure. *One mask is used, so there are [29 masks] remaining. Smaller than expected, it might be just right for children. - Type: 4-layer non-woven fabric mask - Filter Performance: 99% cut - Size: Approximately 17cm x 7cm - Quantity: 29 masks - Structure: 3D立体 structure Thank you for viewing. The masks will be shipped via Yu-Packet Post after being taken out of the box. The box will be folded and included.