This is a great way to protect the back of the poles from dust and debris. However, there is no good way to drill a hole the size of your wires through the end of the wiring. However, a piece of 3:1 adhesive-coated heat shrink tubing (maybe it's 3/8?) barely slides over the part that goes over the wire and adheres well to most wires you would use with power poles, so basically the back side seal side and holds the lid in place.
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