I am selling these because they were the wrong size before I could use them. Masks other than the white gauze ones, size when folded in half: Small: Approximately 11.5cm long, 8cm wide Large: Approximately 13cm long, 10cm wide White gauze mask size: Approximately 9.5cm long, 13-13.5cm wide The elastic ear loops can be adjusted to fit children (except for the white gauze ones). I think these can be used by children from toddlers to upper elementary school age, depending on the child. *These are unused, but please understand that they have been stored at home in a bag. Please refrain from purchasing if you are sensitive to this. They will be shipped in simple packaging. ♥︎ I have never owned any pets. There are no smokers in the house. ♡ We cannot accept any claims after a purchase, so please only purchase if you understand and agree to this.