To use this cookie jar, simply lift the lid by holding the glass knob. You can store all kinds of cookies, biscuits, or other small treats inside. Make sure the lid is tightly closed to keep the treats fresh. When it comes to cleaning, wash the glass body with mild dish soap and warm water. For the lid, wipe it gently with a damp cloth. Avoid using abrasive cleaners as they may damage the hand - painted design. Keep the jar away from direct sunlight and extreme temperatures to preserve its appearance and the quality of the stored items.