Universal Trunk Spring Trunk springs that can be used to secure lightweight FRP trunks and hatches! It's also a versatile item that can be used in various ways depending on your ingenuity. ◆ Rust-resistant stainless steel ◆ Made of stainless steel, it is resistant to rust and has excellent durability, high-temperature resistance, and corrosion resistance. ◆ Easy installation ◆ Simply attach it to the car's trunk! The length can be adjusted with the screw at the tip.