Contaminated Currency Bags Combo Pack includes the outer and inner bags for shipping contaminated currency to the Federal Reserve Cash Service. Outer and inner bags both have tamper evident seals and are individually numbered and bar coded. Outer bags have "CONTAMINATED CURRENCY" printed in red. Outer Bags are 15"x20" - Inner bags are 12"x16". - Combo Pack includes 50 outer bags and 100 inner bags.