Metal, continuous thread cap with 28-400 neck finish and a polyethylene liner. Commonly used on glass bottles or jars, and jugs. They can also be used with lotion, soaps, creams, and personal care items. Continuous thread caps are popular in a wide range of wholesale industries from food, personal care, pet care, household products, industrial products, health and beauty, arts, crafts, hobbies and just about any other market segment. Aluminum closures are lightweight and can tolerate various temperatures. They are also resistant to impact fractures. They are applicable with products in high humidity environments, high salt content products, or water. Polyethylene liners are ideal for general purpose leak prevention and will resists solutions such as alcohols, alkali€™s, cosmetics, acids, water based products and solvents. Also commonly used in food packaging.