HPI Racing 86821 Hex Hub Set with Lock Nuts (4-Piece), 17mm FEATURES: Aluminum and steel construction INCLUDES: Four #86804 17mm Hex Wheel Hubs, HPIC6804 Four 2.5x12mm Steel Pins, HPIC2260 Two Z680 5x8mm Flanged Lock Nuts, HPIC1680 Four Z671 5x8mm Flan