Installing the stainless steel multifunctional car wiper arm is straightforward. Simply attach the wiper arm booster spring to your existing wiper arm to increase its pressure. It's a practical solution for improving your car's wiper efficiency. Features -Color:Blue -Material:Stainless steel -Size:11.00X6.30X3.50cm/4.32X2.48X1.38in -Versatile application: compatible with different types of car windshield wiper arms, making it a multifunctional accessory -Enhanced cleaning power: the booster spring provides stronger wiper action, ensuring a cleaner and clearer windshield -Durable construction: crafted from stainless steel, this product is built to last over time -Wide compatibility: universally designed to fit a majority of car brands and models, ensuring broad usability -Setup: easy to install and detach, requiring no tools or expertise, simplifying the process Package list: 3 x wiper arm springs