Thank you for viewing! This is a handmade, three-dimensional mask. This is a set of 5 plain masks as shown in the image. The size is S. It's equivalent to clothing sizes 100-120. This size is suitable for kindergarteners and lower elementary school students, but please check your child's measurements. Folded dimensions: Length: Approximately 10.5 cm Width: Approximately 8 cm Key features: A topstitch is sewn on the seam in the middle. This makes the nose area look neat! We will ship the masks with approximately 25 cm of elastic attached. Please adjust the elastic to fit. Materials: Outer: Dungaree, yarn-dyed chambray (cotton fabric) Inner: Bleached cotton (sらし) These are handmade items by an amateur. Thank you for your understanding.