Description: Good compatibility: Swing arm is replacement for Wltoys K969 K979 K989 K999 P929 P939 284131 1/28 RC car. Easy to install: The upper and lower swing arm set is easy to use and disassemble without requiring complicated tools. Upgrade upgrade parts: The front steering cup can help replace damaged and old RC car parts, very practical. Reliable material: The RC car front swing arm is made of metal, which is strong, durable and long-lasting. Excellent performance: Front rear shock absorber part can help you improve the performance and stability of your RC car. Specification: Compatibility: Replacement for WLtoys K969 K979 K989 K999 P929 P939 284131 1/28 RC car. Shock Absorber: Outer Diameter: approx. 0.6 cm/0.24 inch, Overall Length: approx. 2.6 cm/1.02 inch. Material: Metal. Color: Red, Blue, Gold, Siver, Type 4(show as picture). Note: There might be a bit color distortions due to different computer resolutions. There might be a slight errors due to different hand measurement. Package Includes: 4 Pieces Upper Swing Arm. 4 Pieces Lower Swing Arms. 2 Pieces Front Steering Cups. 2 Pieces Rear Steering Cups. 2 Pieces Shock Absorber Bracket. 4 Pieces Front Rear Shock Absorber.