NON SLIP AND CURLING：Slippery rugs are dangerous in any home. ZONGOOL rug tape are working on preventing the rug sliding or rug corners curling, working for any shape of your rugs indoors or outdoors, making your carpet hold down and keep it in place. Voiding slipping accidents and properly solve annoying rug problems. Easy Installation： The non slip adhesive rug pads are with dual-side stickers, separately in white and clear color. First, peel off the white sticker and stick the rug pads on the bottom of your area rug. Second, peel off the clear film and stick the rug pads on the floor. Third, press hard to make sure they paste firmly. Note: Must Clean the contact surfaces of the rugs and floors before sticking! Widely applicable：Work on any hard flooring but not for all types of carpets : tiles, hardwood, laminate, marble, concrete, rubber, etc.Besides,upgraded carpet grip stop your rug from curling a, keeps your rug flat forever. No Curling on Corners or Sides: innovative design seamlessly adheres along the underside of rug corners to help prevent rugs from curling upwards away from the floor; grippers can be used under the straight sides of rugs as well Multiple usages: This package includes 4 pieces,which can be widely applied for various styles of rugs and floors, such as tile, marble, laminate, linoleum, wood floors and so on, also suitable for round .That leaves your kitchen, bathroom, and hallway much more secure.