The Wood Grain Child-Resistant Smooth-Sided Foil Lined 38/400 Cap offers a professional and premium closure for your glass or plastic jars. The child-resistant feature offers safety and compliance while the wood grain and smooth texture and appearance offers style and a natural appeal. Foil liners in these cap closures help to create a seal and barrier improving freshness and odor control. Neck finish of 38/400 for containers having a 38mm 'T' dimension with 1 thread turn (400).