I have gray walls and this one fits perfectly. I used it to run an extension along the top of the baseboard to the lamp. People aren't kidding when they say it sticks! Make sure you get it right the first time because there are no second chances. I didn't use any connectors except for the elbow in the corner as you can't see where they connect unless you look very closely. The connectors actually made it more noticeable so I just dropped them and it looks pretty organic.
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