These lightweight tools stretch 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 Hooks fit any Junior Stretcher. (An adapter tube is necessary with Taylor Tools stretchers.) Both Stretcher Hooks have an aluminum body with a black anodized finish. All parts, except for the body, are interchangeable.