house2home 25" couch spring repair kit to fix sofa support for sagging cushions - includes 4pk of springs, upholstery spring clips, seat spring stay wire, and installation instructions house2home our mission at house2home is to provide our customers with the highest quality upholstery supplies and provide them with the information needed to complete their project with ease. our complete spring kit was designed to take all the guess work out of your project. we created the kit with all the parts that professional furniture makers use to build high quality furniture. we’ve also created instructions to make the installation process as easy as possible so you can repair that antique sofa or build the chair of your dreams.