Reason: 1.In order to stimulate the median nerve inside of the wrist, the strap must be designed to buckle on the outer wrist, unlike regular watch straps. First-time users may have difficulties 2.The product can also be applied to patients in hospital, who would have nurses to assist them with wearing the device We suggest that: 1. Practice wearing the device to become familiar with the strap design 2. Manufacturers are aware of this concern, and are actively working on optimizing the design.