An A4 size horizontal flyer paper mockup to showcase flyer design on both papers. If you have a flyer with two sides just rationalize one layer after inserting design and place the backside of the design on the other smart object. Background can be customized by applying fill color, use the background color according to the color scheme of the flyer. Some handy examples are given below for reference:

Free-A4-Size-Landscape-Flyer-Paper-Mockup-PSD Free-A4-Size-Landscape-Flyer-Paper-Mockup-PSD-2 Free-A4-Size-Landscape-Flyer-Paper-Mockup-PSD-3

Description:

Available Format: Layered PSD easy smart object insertion
License: Free for personal and commercial use
Zip File Includes: Photoshop PSD File
Mockup Resolution: 4000 x 3000 px
Artwork Resolution: A4

Instructions:
1. Place poster or flyer design on smart layer
2. Easily change your background color or place custom background as per your choice
3. Photoshop requirement: Adobe Photoshop CS5+

Free Flyer Mockup