Stay N' Place slip resistant square tabs are designed to help keep your rugs and mats from moving and slipping. Stay N' Place tabs have a specially formulated dual adhesive technology that works on any hard floor surface with any type of rug or mat. The anti-skid tabs are safe to use on all types of hard floor surfaces. The 4 in. x 4 in. tabs will work on a rug or mat up to 4 ft. x 6 ft. size. Each package contains 4 Stay N' Place square tabs, one for each corner of your rug or mat.