Upgraded PCB: The Model Railways Train PCB is accessory for 1/87 Electric train model, providing higher performance and reliability Size: 1:87 ho scale circuit board compact size of 3.94inchx0.94inch makes it great for a variety of train models LED light: The 22 PIN PCB Board is equipped with sound and light Durability: Made of quality materials, this railways trains circuit board is sturdy and resilient, making it a reliable choice for enthusiasts looking to upgrade their model trains Accessories: Easily upgrade your electric train model with this ho scale train accessories, which is designed to provide performance in a compact form factor Size Chart: LxW:10cmx2.4cm/3.94inchx0.94inch Package Includes:1x1:87 HO Scale Railwayscircuit board Note: 1.This is not infant toy , please take away from children to avoid eating. 2.Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.