ITEM NAME:1:10 Wheel Rim Internal Counterweight For Rim Axial SC0 90046 D90 TRX4 Description: Make of high quality brass. Fine workmanship and perfect style. Lower the center of gravity of car, increase balance. Long service time and so durable. Simple to use,Professional and very pratical. Specification: Material:Brass Color:As pictures shown Outer Diameter: 38mm Inner Diameter: 22.5mm Aperture: 13mm Package Includes: 1pc*Wheel Rim&;nbsp;Internal Counterweight Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 1-2 cm differences due to manual measurement..1pc Wheel Rim&;nbsp;Internal Counterweight. Lower the center of gravity of car, increase balance. Anyway we will try our best to avoid this kind of thing. Simple to use,Professional and very pratical.