Add a fun, retro flair to your graduation invitations with this Retro Class of Congrats Graduation Envelope Liner. Designed in a vibrant blue, green, yellow, and orange checkerboard pattern, this eye-catching liner brings a playful vintage vibe to your graduation mail. The bold retro colors and classic checkerboard design create a stylish throwback look that instantly elevates your invitation presentation. Perfect for adding personality and excitement, this envelope liner gives guests a sneak peek of the celebration before they even open the invitation. Ideal for high school or college graduation announcements and party invitations, this liner adds a unique and memorable finishing touch that makes your graduation stationery stand out. Celebrate your graduate with a colorful retro style that never goes out of fashion.