Car enthusiasts and mechanics, this APDTY throttle return spring assortment is exactly what you need for those throttle system repairs! This 4-piece set includes both silver and black springs to cover various vehicle applications. You get two silver springs at 4 inches each, plus two black dual-spring designs measuring 4 inches and 2.5 inches. These high-quality springs allow for direct replacement of original throttle return springs, meeting or exceeding OEM specifications for fit, form, and function. The assortment gives you options to find the perfect match for your specific vehicle needs. Proper throttle return is crucial for vehicle safety and performance - these springs ensure your throttle snaps back reliably every time. Made to withstand the heat and demands of engine compartment environments. *Please note: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm, as required by Proposition 65. Whether you're doing maintenance, repairs, or restoration work, having the right springs on hand makes the job so much easier. Keep your throttle system functioning properly with this reliable spring assortment that professionals and DIYers trust.