Delph is a Nepalese brand that provides premium range of Kitchenware products. We use high end materials with most trendy designs to cater your needs. We value quality and customer needs. Use and Care: Clean the glass with toothpaste or salt to prevent scratches. For tall jars, clean with a brush to reach the bottom. Bamboo/Wooden Lid is not recommended for use in microwave or oven. Do not soak lid in the water; Wash lid with wet cloth by hand and air dry after cleaning. Apply olive oil on the lid to protect bamboo finish About Bamboo Lid: Bamboo is a natural material. Each piece is unique and differ in appearance. Color variation is natural and not a defect. All bamboo products are treated with a varnish providing a good coating on the surface of the product, giving it a soft sheen finish and protecting it from moisture. It shouldn't be left wet for a long period of time.