TriFold Flyer Mockup
The best Flyer Mockup are 4 PSD files with the front and backside of brochure and one with title preview. You can easily place your own artwork by using smart layers. Background is changeable in all PSD files.
Free

The best Flyer Mockup to display any designs in style. All you have to do after you create your designs is to insert them which can be done using the smart layers. Coming in PSD format, the high-resolution mockups are easy to download, to edit, and to use.