This Associated factory replacement 13mm Shock Spring Cup Set fits a wide range of Associated RC10 1/10 scale buggies, trucks, and short course trucks. The spring cups seat at the base of the shock body to locate and retain the shock spring, and replacing worn or cracked cups helps maintain consistent suspension feel and spring preload. Sold as a set of 12 cups. Features: 13mm shock spring cups Compatible with Associated RC10 B, T, and SC series platforms Set of 12 cups Factory Associated replacement part 7/7/26 cs