Prime-Line Compression springs are the perfect solution for adding support and stability to various materials. They are designed with flat end coils and feature strong spring rates. These springs feature a maximum safe load of 66.60 lbs. They are made with tempered steel wire and nickel-plated for corrosion resistance. The small compression spring's outer diameter measures about 1 inch, and the length measures 3 inches. These springs can be used in a variety of household applications and repairs. You can use these steel compression springs as toys springs, chair springs, recliner springs, sofa springs, couch springs, etc.