These 30 lb. Kraft #4 Grocery Bags are strong and sturdy for many applications and are popular for packing your purchases at supermarkets, hardware stores and retail stores. With the Duro brand 18404, you can understand exactly what you are buying. These are bag #4 with a basis weight of 30lbs. The 3.125 inch side gives more space for the bag to open and fit bulky items. These 100% FSC Recycled Paper bags feature a thumb notch for easy opening. Reusable and recyclable. (Bag Size: 5 x 3.125 x 9.75 500 Bags) 30 lb. Kraft #4 Grocery Bags can be used across multiple industries and with a wide array of products.