The scale indicates the size of the diecast car. So when talking about the 1/18 scale, it means that one centimeter on the diecast Solido is 18 centimeters in reality. To give you an idea Solido diecast 1/18 scale measuring between 25 and 30 centimeters depending on the model and Solido diecast 1/43 scale measuring about 10 centimeters. More scale is the higher more the car will be small. The links below allow you to filter your search by Solido diecast scale.