Only the replacement backs are provided. The Ring Alarm Contact Sensor is not included.

This item has been created using 3D printing technology with eco-friendly PLA material. Please note that due to the nature of the 3D printing process, there may be minor imperfections such as layer lines, slight variations in texture or color, and small irregularities. These imperfections are inherent to the 3D printing process and do not affect the functionality or structural integrity of the item. Thank you for understanding.