The rug has an anti-slip backing. Choose the 4' x 6' rug in grey to get this deal.  Originally $21.99, drops to $20.23 in grey when you click the 8% off on-site coupon on the product page. Shipping is free for Amazon Prime members or when you spend more than $25. Otherwise, it starts at $6.99.

Clip the 8% off on-page coupon.