[New Material, Vacuum Technology Design]. This gripper can easily stick under any flat carpet. BUT DO NOT USE ON CARPET FLOOR. We use Vacuum Suction to ensure a firm grip on the floor and keep your rug in place, stop curling and slipping (Make Sure your Floor is Clean and Dry before using). The carpet tapes add extra comfort underfoot due to the slight elasticity of the vacuum technology. [Anti-Slip Pads, Stay Your Carpet in Place] Is your carpet easy to slide? Pets moved Area Rugs Easily? Uneven carpet? Easily stumbled by the carpet? Rugs Tightly Rolled and Curled at the Edges? Tired of Pack Rugs in Place every day? Your carpet needs Anti-slip Rug Pad Grippers! [Thin and Invisible} Each Piece is 10cm*10cm(3.93"L x 3.93" W), the thickness of the carpet anti-curling gripper is less than 1/10 inch, it is not obvious after installation, and does not affect the beauty of your carpet. Wide range of applications, use them on area rugs, bath rugs, kitchen rugs, or child rugs in living rooms, bedrooms, etc. [Self-Adhesive, No Glue No Damage to Your Floor] Our Rug Pad Gripper is Easy to install and peel off, with no residue or glue. Peel off the backing sticker and stick the ripper on the rug, then press the gripper firmly onto the floor. The unique vacuum technology makes it easily peel off from the floor, without harming your floor. [Washable&Reusable, Replacement&Refund] These grippers are easy to clean and can be machine-washed together with the rug without affecting the adhesion. We suggest using Laundry Net and Air Dry. If you are not satisfied, just message and we will send a replacement or refund.