Customized Garage Door Window Rubber O Ring Food Grade Silicone Seals Ring. Food Grade Silicone Material: Made of 100% silicone, non-toxic and safe for food contact applications. Customizable Color and Size: Color and size are fully customized according to specific customer requirements. Effective Sealing Performance: Prevents air, water, and dust entry, protecting machinery and parts from damage. Durable and Anti-Aging: Features excellent flexibility and anti-aging capability for long-term use. Wide Industry Application: Suitable for auto parts, doors, windows, containers, machines, and construction. Flexible Packaging Options: Packed in rolls with PE film and woven bags or cartons, customizable as needed. Fast Delivery Time: Shipped within 1-7 days after order confirmation for new customers.