If you are looking for a high-quality and secure cap for your 1 gram jars, you might want to consider the eBottles Child-Resistant Smooth PE-Lined 38/400 Cap. This cap is designed to fit glass or plastic jars with a 38mm neck finish and one thread turn. It has a smooth-sided surface that gives it a sleek and professional look. The cap also features a child-resistant mechanism that prevents accidental opening by children, ensuring safety and compliance. Moreover, the cap has a PE liner that creates a tight seal and prevents odor leakage, keeping your product fresh and potent. The eBottles Child-Resistant Smooth PE-Lined 38/400 Cap is available in different colors to match your branding and packaging needs.