Sani Tuff cutting boards are made from a high density rubber compound that won t crack splinter swell or absorb liquids or odors and lasts far longer than cutting boards made from wood or plastic Sani Tuff cutting boards are tested and certified by NSF International The rubber compound used for these cutting boards has a high degree of resiliency preserving knife edges longer Sani Tuff cutting boards can be resurfaced by sanding the board as needed Specifications . Color Buff. Shape Rectangle. Material High Density Rubber. Thickness 1 . Size 18 x 24 . Weight 20 lbs