IDEAL SIZE - These jam jar lids are essential for making preserves. The twist-off lids fit 200ml and 315ml jars with a 66mm diameter and a four-tooth thread. FOOD SAFE - Our canning jar lids are made of galvanized sheet metal and lined with food-safe silicone. This prevents the contents of the preserves from reacting with the metal and ensures the lid won't rust. TIGHT - These replacement lids seal canning jars tightly, both when cold and after pasteurization and sterilization. The lids protect preserves from oxygen, moisture, and insects. TWIST-OFF CLOSURE - The screw-on lids are precisely shaped to ensure that liquid and powdered products retain their full aroma. The universal lids have a twist-off closure, making them easy to open and close. VERSATILE - we offer jam jar lids in several sets: 10, 50, 100, and 200 pieces. Our selection includes solid-color lids, lids with patterns, lids printed with fruit and vegetable motifs, and lids with beekeeping designs. The lids for canning