ACID-FREE: 25 lb neutral PH glassine paper that is great for protecting documents, drawings, photographs, and negatives against dust and abrasion. DURABLE: Resistant to grease and moisture. Can be written on, folded, and creased. FOOD SAFE: Can be used in the kitchen for food storage. VALUE: Available in a variety of sizes and lengths for different arts and crafts projects. Proudly made in the USA. Our durable glassine paper is acid-free with a neutral PH that is archival grade. Glassine paper is designed for protecting documents, drawings, and photographs. This is not a butcher paper. Use at home or school. All Paper Pros papers are proudly made in the USA.