The Grand Puff 53 mm Child-Resistant Pressure Seal Lined Cap not only offers a secure closure for your jars, but also provides peace of mind with its child-resistant feature. The pressure liners create a strong seal to prevent contamination and preserve freshness, making it the perfect choice for professional packaging. With a neck finish of 53/400, this cap is suitable for containers with a 53mm 'T' dimension and 1 thread turn.