Soffit Hook - Extension Cord

I have always disliked the site of a hanging extension cord from the end of our Holiday Lights and wanted a way to hide it, thus the Soffit Hook - Extension Cord was born.

The hole is 10 mm and the opening is 6 mm, allowing the cord to "snap" into the opening. The opening in the clip is 4.5 mm, slightly smaller than the Soffit trim around my house. I am placing this clip on the Soffit Trim next to the siding, making it more difficult to see when the lights are on and off.