Product details:

Available in a chrome plated or silver powder coated finished, QA1 2.5" I.D. Coil springs are offered in 6" to 14" free length. QA1 springs are strong, consistent and have a long life because they are made with the highest quality materials. A lifetime guarantee ensures that All QA1 springs will stay within 2% of the original free height and rate under normal operating conditions.