Neck joint, also known as ghost mannequin service, is a clever photo editing technique used primarily in the fashion industry. It involves removing the mannequin from clothing images to create a seamless and professional look. By carefully editing out the mannequin's visible parts, such as the neck and sometimes sleeves, the clothes appear as if an invisible model wears them. This technique allows customers to focus solely on the garment's fit, style, and details, enhancing the clothing line's overall presentation and visual appeal.