Usage Tips:Features: Widerange Application: All battery box could fit for most toy car crawler of 1/8 1/10 scale, use as the replacement part or modified accessories of your toy . Remote Control Crawler Spare Part: A perfect replacement for your handmade toy, especially for toy Remote Control crawler car, upgraded modified accs of your electrical toy which offer a service cycle with great performances. Speciality Design Battery Holder: The battery holder, contains 1x battery box, 2x belt to fix the battery box, more stability for better performances to improve play experience. Selected Material: Made by plastic material, wear resistant and safety, more stable with longtimeduration . Easy Installation: Applicable for most Remote control car toy requirements and easy toinstall and change by your own, if you need any other instructions please do not hesitate to contact with us. Specifications: Product Dimension: Approx. Length 14.5cm/5.7inch Material: Plastic Note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Remote Control Crawler Car Battery Box Holder