This cutting board is made of non-porous, high-density polyethylene, which makes it less susceptible to liquid absorption and easier to clean. Available in small, medium, and large sizes, with small sizes available with a 1/2" thickness or a 3/4" thickness. 

• Small - regular dimensions: 18" x 12" x 1/2"
• Small - thick dimensions:  18" x 12" x 3/4"
• Medium: 20" x 15" x 1/2"
• Large: 24" x 18" x 1/2"
• Dishwasher safe.