Feature●A set of unequal pitch springs for 1/10 touring cars/drift cars●An irregular pitch spring is used to create more efficient shock absorption during up/down movements●Set includes 5 different types of springs with different tension and can be changed according to the ride●Inner diameter 0.5 inches (13 mm), length 1.1 inches (28 mm), #3740... Diameter 0.06 inch (1.6 mm), 0.06 inch (1.5 mm), 0.05 inch (1.4 mm), 0.05 inch (1.3 mm),Description A set of unequal pitch springs for 1/10 touring cars/drift cars. An irregular pitch spring is used to create more efficient shock absorption during up/down movements. Set includes 5 different types of springs with different tension and can be changed according to the ride. Inner diameter 0.5 inches (13 mm), length 1.1 inches (28 mm), #3740... Diameter 0.06 inch (1.6 mm), 0.06 inch (1.5 mm), 0.05 inch (1.4 mm), 0.05 inch (1.3 mm),