This rear steering block set is suitable for WLtoys K989 RC Car. It's a good replacement for RC fans. Its high quality and durable performance can bring lots of racing joy. It's light and very effective to work. Definitely best choice for your K989! Features: 100% new. Easy to install and replace the old one. Tight to hold transmission axis. Specially suitable for WLtoys K989 RC car. Very light weight and portable to carry. Specifications: Brand name: WLtoys Item name: Rear Steering Block set Material: Plastic Suitable for: WLtoys K969 K979 K989 K999RC Car Item dimension: 30 * 22 * 10mm Item weight: 0.9g Package information: Package size: 10 * 6 * 1.5cm / 3.9 * 2.4 * 0.6in Package weight: 8.7g / 0.3oz Poly bag package Package List: 1 * K989 Left Rear Steering Block 1 * K989 Right Rear Steering Block