Pack of 200 - Universal Quart size vacuum seal bags can be used in most leading brand vacuum sealers</br>Made of BPA Free & FDA approved food safe material</br>Heavy-duty bags with 4mil smooth side and 3mil embossed texture side with air-removal channels for maximum freshness</br>Vacuum sealing with Sta-Fresh Bags helps extend food storage time?? lock in freshness & flavor?? expedite marinating process