Brand rubber Cups
Fits most trucks. Keep Longboard/ skateboard trucks flexible
Skateboard may break up or lose its toughness if Cup too hard. And it too cause the skateboard to be difficult to control. These Cups Fits Perfectly with the Skateboard Truck
Material: Rubber
Diameter(3.25): approx 12*10 mm
Diameter(5): approx 16*10 mm
Diameter(7): approx 18*12 mm