Size: One size fits most kids/children/boys/girls. L*W:18x11cm/7.1"x4.3"(Approx). Suitable for any ocasions, outdoor, gardening, pollution,crafts, travel, etc. Design: Cute 3D Printed parttern mouth cover is resuable and washable, not disposable cover. Wish adjustable and elastic earloop to a closly fit, fit for everyone. Applicable occasions: Suitable for the any occasions, like smoggy weather and stay away from the harmful substances. Anti-dust, Anti-fog, Great Gify for children/kids/boys/girls. Caring Instructions: Gentle Hand Wash under 30? hot water, do not bleach, do not machine wash,no tumble dry, low ironing below 110?