1. Easy to install and durable. 2. Equipped with spare springs. 3. Has a shock - absorbing effect. 4. Suitable for 1/10 scale remote - control rock crawlers. 5. Hole spacing (when uncompressed): 120 mm. 6. Compressed length: 12085 mm (There may be an error here. It is speculated to be something like 120 - 85 mm). 7. Shock absorber body diameter: 10 mm. 8. Spring body diameter: 15 mm. 9. Shaft diameter: 3.5 mm. 10. Rod end diameter: 3 mm. 11. Color: Yellow + Black. 12. Material: Metal. 13. Package contents: - 4 remote - control cars. - 8 spare springs for remote - control cars. 14. Precautions: This product does not contain oil and you need to add it yourself. The length refers to the distance between the mounting holes. 15. Only the above package contents are included, and other products are not included. 16. Note: Light reflection and different monitors may cause the color of the items in the picture to differ slightly from the actual product. The measurement error is allowed to be plus or minus 1 - 3 cm.