ITEM NAME:RC Car Differential Gear & Driving Gear Pinion for WLtoys K989 Description: 2pcs RC Model Car Differential Gear & 3pcs Driving Gear Pinion Set. Suitable for WLtoys K989 1/28 RC Car. Easy to Install and Durable in Use. High Quality RC Car Replacements Parts. Material: Plastic Size Chart: Length: 34mm /1.33 inch Driving Gear Pinion: 0.9cm / 0.35inch,1.3cm / 0.51inch Package Includes: 2 Pieces RC Car Differential Diff 3 Pieces Driving Gear Pinion Note: Please allow 1-3mm measuring deviation due to manual measurement. Due to the different monitor and light effect,the actual color of the item might be slightly different from the color showed on the pictures.Thank you! SKU: FUZ0006266461026445.Suitable for WLtoys K989 1/28 RC Car. 2pcs RC Model Car Differential Gear & 3pcs Driving Gear Pinion Set. 2 Pieces RC Car Differential Diff. 3 Pieces Driving Gear Pinion. Material: Plastic.