The Kilner Wide Mouth Preserving Jar 1L is the perfect way to preserve your food. With a wide mouth, it is easy to fill and clean, and the 1L capacity is ideal for preserving a variety of foods. The jar has a screw-top lid with an airtight seal, ensuring that your food remains fresh and nutritious for longer. The Kilner Preserving Jar is made from high-quality glass, ensuring durability and a long lifespan.