The track's new favorite ultra-thin lithium battery, due to the reduced weight of the battery, T-Work's introduces a new battery weight to adjust the weight distribution of the model car.

The surface of the weight is treated with black coating,is exquisite and beautiful.Precise weight adjustment helps to improve the stability of the model car  at high speed.

3 different weights to choose: 40g, 50g and 60g ,  with uniform size and easy installation.