Simple and easy to use, sticky enough and don't hurt the floor, this is the goal we strive to pursue. (Rug Gripper) Parameters: Qty: 8 PCS Rubber Anti skid Pad +8 PCS double-sided tape Shape: Triangle Size: 4.1"*4.1"*5.9"(Hypotenuse) Material: Polyurethane, Glue and fiber Thickness: rubber pad (0.08") and tape (0.008") Weight: rubber pad (4.4 OZ) and tape (0.9 OZ) Whether it can be used outdoors: Temporary use Suitable for range: Recommended for flat, clean and hard material floor How to use: Example 1.How to increase the rubber pad stickiness to prevent rug from curling or sliding on the floor?(Reference Third picture) A.Keep the back of the rug and the floor is flat, clean and dry. B.Peel off the tape white paper, and then stick to the rubber pad. C.Peel off the other side release paper, then put it on the back of rug, and pressure can be sticky. Example 2. How to prevent rug slide on the carpet? (Fourth picture) A.Only need to use the Tape. B.Peel off the white paper and post it to the back of rug and exert enough force to fix it. C.Peel off the other side release paper and stick it on the carpet, then pressure to prevent sliding. Note: 1.Stay away from pets and child 2.Adhesive tape is very sticky, can't be reused, wood flooring please use carefully.