Parkland Plastics Embossed White Matte Plastic Wall Panel in the Wall Panels department at Lowes.com
Amazon.com: USA Sealing Clear Polycarbonate Plastic Sheet, 1/16”Thick x 24”Wide x 24”Long, Transparent Panel, Shatter Resistant, Easy-to-Cut, Bendable, Moldable. For DIY, Crafts,Industrials,Robotics,Manufacturing : Industrial & Scientific
Vinyl Handmade Pad Panel Plate | White Waterproof Plastic Pad - Board Black Plastic - Aliexpress
Amazon.com: BuyPlastic Natural White HDPE Plastic Sheet 1 1/2" Thick, Size 6" x 6", High Density Polyethylene Board, Actual Dimensions 5.75" x 5.75" : Industrial & Scientific