I purchased this online, but I missed the opportunity to use it. I'm selling it because I won't use it even if I keep it. It's new, unused, and unopened. No comments necessary, immediate purchase OK, and will ship anonymously. Thank you. The following is the product description: The perfect door knob child lock for child safety. - Brand: deligoo - Product Name: Door Knob Child Lock - Material: ABS, POM - Purpose: Child safety Thank you for viewing.