Fulfillment by Amazon (FBA) is a service we offer sellers that lets them store their products in Amazon's fulfillment centers, and we directly pack, ship, and provide customer service for these products. Something we hope you'll especially enjoy: FBA items qualify for FREE Shipping and Amazon Prime.If you're a seller, Fulfillment by Amazon can help you grow your business. Learn more about the program.AmazonBasics polycarbonate hard floor chair mats are specifically designed for the protection of hardwood, tile, laminate, linoleum, concrete and other hard floor surfaces from everyday wear and damage caused by caster or wheel based chairs. Totally flat and impact resistant polycarbonate with a lightly textured top surface. Provides an ergonomic chair glide surface for controllable movement around your floor area. Family friendly, free of phthalates and heavy metal content.