This lightweight tool stretches from wood subfloors, not from the wall, making stretching possible in unsupported areas such as opposite glass windows, or in mobile homes. The pointed steel prong is heat treated to ensure a good grip and long life. Stretcher Hook fits any Junior Stretcher. (An adapter tube is necessary with Taylor Tools stretchers.) Stretcher Hook has an aluminum body with a black anodized finish. This is the original Stretcher Hook for use in most situations. Weighs 1-1/4 lbs. Caution: For use only on wood subfloors. This tools works by piercing the carpet and pad with the prong anchoring in the wood subfloor. It should be used only with appropriate approval.