Kids and teachers will love this BOX OF 10 3 FOLD 19inX45inX3/4in B/R RF! X-tra wide radio frequency sealed seams, prevent germs and bacteria from infiltrating or migrating within our mats, protecting the child against possible infection from harbored germs. Using a water diluted bleach mixture sanitizes all surfaces to prevent external contamination...Dimensions:19inX45inX.75in