Features:

• Case of nine boxes, each containing 30 1-gallon storage bags (270 total bags)
• Durable bags protect food and other storables
• Easy-to-use; no need to pinch or line up tracks -- just slide the bag closed
• One Zip slider locks in place to keep bag secure and closed every time
• Ultra-strong and durable, Hefty products are made by Illinois-based Pactiv Corporation

Rating : - Even I can close these bags
I have become really dependent on these zipper bags and use them for organizing many little things around the house as well as using them for food.