Using Vacmaster's full mesh technology, this 947102 8" wide roll of vacuum packaging bag material helps keep food fresh up to five times longer than traditional food storage bags! Because each roll is 50' long, you can cut each bag you're using to the exact size you need, eliminating waste! Made of 80% polyethylene and 20% nylon, these bags have a third layer of textured mesh material. This provides complete air removal and a strong, positive seal, perfect for any external strip, suction-type vacuum food sealer. It also ensures maximum bag suction and air removal with minimal stress on your machine, while also improving the packaging of liquid-rich foods like fresh meat and fish. The bags can withstand high temperatures, are boilable, and are a great choice for sous vide cooking. This roll may need to be trimmed to fit inside a built-in roll holder.