PERFECT FOR KIDS SIZE: SMALL/MEDIUM Israeli & NATO Military SGE 400/3 Gas Mask with 3 Filters included. Perfect for kids. These gas masks are subcontracted by the official manufacturer of the Israel Defense Forces (IDF) INCLUDE 3 FILTERS: Genuine NATO 40mm NBC Israeli & NATO Military Spec Gas Mask Respirator FREE Survival Kit Checklist INCLUDED. gas masks are all brand new made in 2017 factory sealed with thorough instructions Compatible with all 40mm gas mask filter cartridges