These seam squeezers are made with a powerful torsion spring and two grippers that are oriented inwardly to pull seams together. Sold in a set of two. They are helpful on glue-down carpet installations to pull and hold seams together. Pulling force can be controlled with the amount of hand pressure. The spring arms are vinyl-coated for comfort. Nap grips are replaceable: Part No. 1180-A.