Fine workmanship and durable in use. Fine workmanship good performance 4 types optional to meet your needs. Upgrade parts for rc car models. Easy and simple to install and remove. Package Includes:(OptionalType 01: 1 x Steering arm; 1 x Steering gear; 1 x Remote control ; 1 x Receiver; 1 x 120A Brushless ESC; 1 x Brushless motor; Type 02: 1 x 120A Brushless ESC ; 1 x Brushless motor; Type 03: 1 x Steering gear; Type 04: 1 x Steering arm. Manufacturered by EAPTS. 100% brand new and high quality. Material: plastic+metal. It is compatible with for RC Wltoys 144001 1/14 RC Cars. Size: package: 20x28cm/7.8x11.02in 16x6x5cm/6.2x2.3x1.9in 4x4x2cm/1.5x1.5x0.7in 2.5x0.7x0.5cm/0.9x0.2x0.1in. Easy to use stable performance. Made of high-quality materials durable firm and has a long service life.