The LEONTOOL 2 Pcs GX21582 GX20377 Mower Deck Belt Tension Spring is specifically designed for John Deere lawn mowers from L120 to G110. It offers superior durability and performance, ensuring optimal belt tension for efficient blade operation. This high-quality kit includes two tension springs, making it convenient for quick and easy installation. The well-built design of the springs ensures they can withstand the strain of mowers operating with higher horsepower, ensuring optimal performance. With its advanced components and attention to detail, the LEONTOOL 2 Pcs GX21582 GX20377 Mower Deck Belt Tension Spring is an excellent choice for lawn enthusiasts and professionals alike.