Federal Reserve Tested and Approved. 50 bags per package. All of Superior Bag Manufacturing's deposit bags are 100% Made In The USA. These Tamper Evident bags are equipped with Sentry Dual Seal Technology and are 20 inches wide and 20 inches long. This double adhesive closure system ensures that the bag will not open unexpectedly, unlike other brands. Cash In Transit bags are clear (transparent) in compliance with Federal Reserve regulations, allowing for easy inventory. They are equipped with unique matching serial numbers for both the tear off receipt and the bag. This ensures that the bag has not been opened and then replaced with a similar bag, therefore deterring tampering. Bags marked with the SentryGreen registered trademark are 100% biodegradable. This does not affect the shelf life or security. These are the perfect bags for keeping large amounts of cash safe in storage or during transportation. Directions included on bag. Do not overfill. When tampered with, visual indicators of vandalism will be apparent.