100% Brand New.!Easy to install with simple hand tools. Its surface is smoother and more corrosion resistant. The cylinder block is made of thickened precision steel pipe, which has a very high pressure resistance and is not easily deformed. Use seals, long service life. When we open the trunk, it acts as a buffer, which is more labor-saving, more convenient, and increases the comfort of use. Fit for Tesla Model 3 Trunk Loading Grade: Medium Load, Model: TM 25*40 Die Springs for die machinery or other applications. Description:Rectangular section, closed-end design. Die springs are primarily used in die machinery, For Plastic . The loading grade of die springs in various colors (from lightest load to extra heavy load): yellow, blue, red, green, brown. In addition, because die springs are well suited for high stress applications, they are also suitable for a variety of other applications as well. Colour:red Material:metal Spring Sizes: 25mm / 1-inch Outer Diameter 13mm / 0.5-inch Inner Diameter 40mm / 1.57-inch Free Length Package Contents: 2 x Die Springs Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.