I have a Pioneer Double Din 3100 and i ordered a JDM Double Din Dash Kit but the box it came in says its use for single din and i put it against the DVD player and it fits but it does not look flush. is this something i should worry about?

Here is a link to a picture of the Dash kit i ordered but i order it actually from a trusted store from ebay. any answers to a solution would be much help thank you.

Hold on wait i just noticed by looking at the picture closely that one is single but mine its flushly cut to a double just thought id point that out there.