These 4" x 4" 2-mil reclosable plastic bags feature the color red line, which stands for the highest quality plastic resealable bags in the packaging industry. When you see the "Red-Line" in the resealable top of a Minigrip reclosable poly bag, you will know your products are packaged, shipped, and or stored in the resealable plastic bag for over 50 years. The 4 in. x 4 in. 2 mil light-weight resealable Minigrip poly bags prevents scratches and keeps out dust, moisture, and oils, making it perfect for light duty jobs. These Mini Grip plastic 4x4 .002 reclosable poly bags are manufactured with 100% FDA-approved virgin resins that are NAFTA, and USDA certified FDA and USDA approved.