Correx Sheets 8x4 2400x1200mm HEAVY DUTY Black / Corrugated Plastic 2mm | eBay
Coroplast 4' x 8' Sheet - Colors (4 mm thick)
Sibe-r Plastic Supply SM 5 Pack WHITE Corrugated Blank Sign - Etsy UK
Corrugated Plastic 13mm White corrugated plastic sheets, 13 mm white 48 x 96 plastic corrugated sheets, white heavy duty extra strong 48 x 96 corrugated plastic sheeting