A. Usage Tips:1. Precise Fit for OmieBox: Specifically designed for OmieBox lunch box, this lid sealing gasket provides a precise fit for the bottom tray. It is not compatible for OmieBoxUP or for OmieBox models. 2. Safe Silicone Material: Crafted from food grade silicone, this gasket is safe and dependable for use by kids. It offers peace of mind with its robust construction, ensuring a long lasting lifespan. 3. Flexible and Rigid: This silicone gasket achieves the ideal balance between softness and rigidity, ensuring a tight sealing while withstanding frequent use, not easily deformed. 4. Extends Lunch Box Lifecycle: Over time, lunch box gaskets can get lost, damaged, or dirty, leading to poor sealing and potential leaks. Our silicone replacement gasket helps extend the life of your lunch box by providing a dependable sealing, maintaining the integrity of food storage and preventing leakages. 5. Easy Installation: This set includes 2 airtight food container gaskets, ensuring you always have a clean and dry spare on hand. The gaskets are quick and simple to install, providing a convenient solution for maintaining your lunch box's performance. B. Item Type: Lunch Box Lid Sealing Gasket C. Material: Silicone D. Weight: Approx. 77.00g / 2.72oz E. 4 x Lunch Box Lid Sealing Gasket