This item saves you troubles and frees your hand when opening your car trunk. Adjustable length spring allows you to adjust the height of the lid according to your needs. Made of hard solid metal and surface plating process treated, this spring device has high quality, corrosion resistance and very durable in use. Features - Color: Blue. - Material: Metal. - Size: 23.5x1.5x1.5cm. - HIGH QUALITY: Made of hard solid metal and surface plating process treated, this spring device has high quality, corrosion resistance and very durable in use. - EASY INSTALLATION: Just screw in the key ring into the mounting position and hook on the other end, then adjust the length of the spring according to your need. - CONVENIENT: With this automatic lifting spring device, you can open you trunk with just a click on the remote, eliminating the need to lift the tail cover with your hand. - WIDE APPLICATION: Applicable for most with remote open but no automatically lid lifting trunk, with this device, you can enjoy the automatic lid lifting trunk too.