The Non-Slip Corner Gripper Area Rug Tabs come in an 8 pack and are designed to prevent rugs from curling. These tabs are double-sided and suitable for use with rugs. They have a non-slip feature and are made of foam with adhesive for secure placement. The product has a warranty of 1 year and is made in the USA. It measures 4.5 x 4.5 inches and weighs 2.53 ounces. Brand new, got 2 for Christmas
eBay