Happy Trees 50-Pack Red/Cyan Anaglyph 3D Glasses

These are 50 foldable white-cardboard anaglyph 3D glasses with red/cyan lenses designed for group events, classrooms, parties, and multimedia viewing.

Handy and affordable, this set from Happy Trees gives you fifty lightweight, single-use-ready pairs that snap from flat to wearable in seconds. Each glasses pair is printed on white cardboard and uses classic red and cyan filters to reveal depth in anaglyph photos, videos, DVDs, and print materials. The compact folded dimensions make them easy to store or distribute, while two fold scores let you adjust the fit for different head sizes.

How easy are these 3D glasses to use at an event or in class?

Very straightforward: each unit arrives flat for simple transport and unfolds into a wearable pair in seconds. The cardboard temples tuck in and fold along scored lines, letting you set a snug or roomier fit depending on the viewer.

• Comes folded (14 x 3.7 cm) and opens to full length (40 x 3.7 cm) for easy distribution.
• Two fold scores let you adjust for smaller children or adult heads.
• No tools or adhesives needed — crease and wear immediately.

What viewing types and media are these red/cyan glasses compatible with?

These anaglyph lenses work with any content produced in red/cyan format, so they’re versatile for both digital and printed materials. Use them for classic anaglyph images, many 3D DVDs, online videos, and specially prepared comics or magazine spreads.

• Compatible with red/cyan anaglyph internet images and videos.
• Works for many 3D DVDs and downloadable anaglyph films.
• Great for printed 3D posters, books, and promotional materials.

Are these glasses comfortable and durable enough for extended use?

They’re designed for short- to medium-length viewing sessions and for group distributions where cost-efficiency matters. The cardboard frame offers light comfort and the fold scores let you tweak the angle so lenses sit more comfortably over the eyes.

• Lightweight white cardboard frame reduces pressure on the nose and ears.
• Temples fold to provide a better fit across head sizes.
• Best suited for events, classrooms, and casual home viewing rather than long-term professional wear.

How do I store or carry the set of fifty glasses?

The pack stores compactly because each pair ships flat, keeping bulk low and transport effortless. That makes it simple to keep extras in a cupboard, hand them out at a screening, or include them with event kits.

• Flat dimension of 40 x 3.7 cm when open for organized storage on shelves.
• Folded size of 14 x 3.7 cm fits into boxes, event bags, or mailers.
• Disposable cardboard design makes cleanup easy after large events.

Who is this for? These Happy Trees 50-pair red/cyan cardboard glasses are an economical choice for teachers, event organizers, party hosts, and marketers who need a quick, low-cost way to enable 3D viewing for groups. If you’re planning classroom lessons, corporate screenings, festival giveaways, or a themed gathering where anaglyph content will be shown, this set provides a reliable, easy-to-distribute solution. They’re ideal when convenience, portability, and affordability are higher priorities than long-term durability or premium fit.