General description This 4 Pack of 3.9 x 3.9 inch Rug Grippers is designed to keep your rugs in place and prevent them from sliding. Utilizing innovative VACUUM TECH design, these grippers adhere firmly to all types of floors, ensuring your rugs stay flat and secure. They are easy to apply and remove, making them a convenient solution for any home. Technical specifications Dimensions: 3.9 x 3.9 inches Thickness: less than 1/10 inch Material: Vacuum technology with suction pores Benefits Prevents rugs from sliding and curling Discreet appearance after installation Adheres firmly without leaving marks or causing damage Easy to wash without removing from the carpet Provides extra comfort underfoot due to bouncy suction technology Components Includes 4 square pieces to maximize floor contact Usage Suitable for use on hard floors Not recommended for rugs on carpets Can be used outdoors to prevent slipping and flatten corners