Silver, smooth, metal shelled, continuous thread cap with 89-400 neck finish and a foam liner. Commonly used for food items, 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. This polypropylene (PP) cap has a high tolerance for heat and is very durable. Linerless caps may not create the right seal needed for your product.