Clear straight sided wide mouth jars are ideal for easy access to what's inside. These high quality glass containers keep product pure and secure, or perfect for retained samples or long term storage.The 58-400 mm cap has a matte finish and ribbed sides with a F217 liner. An F217 liner is a three-ply liner composed of a low density foam core between two solid layers of low density polyethylene. F217 liners have excellent chemical resistance and a low moisture transmission rate.