These mats provide an important reminder for all who enter to practice social distancing while inside. The beveled edges provide a safe transition from the floor to the mat, and these mats are certifed high traction by the National Floor Safety Institute (NFSI). The PET (polyethylene terephthalate) carpet surface is made 50% post-consumer recycled plastic bottles and is naturally resistant to staining and fading. Made in the USA, these 3' x 5' mats measure approximately 35" x 59". Please note that mat sizes are approximate as rubber shrinks and expands in conjunction with temperature and time. Tolerable manufacturing size variance is 3-5%. These mats are compliant with Prop 65 and require no warning.