The Forney 72597 1-1/4-inch X 10-inch X .148-Inch wire spring extension is a zinc-plated steel wire extension spring. Baked for a rust resistant finish and heat treated for performance and longevity. Ideal for a wide variety of uses in homes, the shop, on the farm or ranch, small businesses or light industry such as screen doors, chaise lounges, toys, lawn and garden equipment, industrial and farm equipment, business machines, cars, trucks, boats, RVs and hundreds of other uses. Forney Industries is one of Americas longest operating family-owned metal working product companies. Founded in 1932, Forney offers more than 5,000 products for the hardware, automotive, farm and ranch and do-it-yourself markets. If youve got metal working questions, weve got answers. Were committed to your success regardless of location size or needs. 1-1/4-inch (31.75mm) X 10-inch (25.4cm) X .148-inch (3.76mm) wire spring extension. Max load: 77.0 Lbs. (34.93kg). Manufacturer number: 10-339. Claims for warranty must be made within 90 days of the date of purchase. Proof of purchase required. This warranty does not cover any product that has been subject to misuse, neglect, negligence or accident, or that has been used in any way contrary to the purpose intended.