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✔CONVENIENT SIZE - These 17-5/16" x 13-3/8" (44cm x 34cm) white boards come in a pack of 10 and are big enough to fit legal or letter size printed paper. One 4mm sheet is more rigid than cardboard.
✔INDOOR AND OUTDOOR USE - Corrugated plastic sheets are waterproof and hold up to use as signs for a lawn, yard sale, store opening, real estate open house, or a political or personalized message.
✔VERSATILE - These panels are a great alternative to a foam core poster board. They can be used for a school art project, happy birthday sign with custom lettering, or even as a guinea pig cage liner.
✔SUSTAINABLE - Corrugated plastic is made of polypropylene, making it 100% recyclable. The durable qualities of Coroplast make it an ideal candidate to be repurposed or reused.
✔CUSTOMER SATISFACTION- This product is backed by Amazon's customer return policies. Customer satisfaction is important to us, so please feel free to contact us with any concerns with this product.

Experience superior quality
Our high quality corrugated plastic (Coroplast) sheets are 4 mm thick and 17 inches (44cm) long by 13 inches (34cm) wide. The air channels allow for the board to be lightweight, while still maintaining strength. They are durable and waterproof, ideal for use indoors and outdoors. Made of rigid polypropylene, they can be recycled (Code 5 by the Society of the Plastics Industry) and reused for many different and unique applications.
Endless numbers of applications
These sheets work great as a replacement yard sign display when used with separate metal H-stakes or posts, estate sales, art projects, moving signs, anti or pro political stance signs, for rent signs, creative picket line or protest posters, office, stores, businesses, and liners for guinea pig cages. They are also a great material to be used for school presentations, art projects, and even for robotics and engineering projects.