Blue 4MM Wheel Lock Nuts (Set of 4) for Traxxas Axial Racing HPI Racing TLR and ECX Vehicles Blue 4mm Serrated Flange Wheel Nuts (Set of 4) Precision CNC 6061 Aluminum Direct replacement part (compatible with all wheel types and brands) All Luxury RC Products are backed by a One Year Limited Warranty Compatible with all: Traxxas Slash 2WD, Slash 4X4, Rustler, Stampede 2WD, Stampede 4X4, Rally, Bandit, Telluride, 1/16th E-Revo Slash Summit, Nitro Slash, TRX-4, Ford Mustang, Ford GT. Axial Yeti, Yeti SCORE, SCX10, Wraith, RR10 Bomber, AX10, Exo Terra Buggy. TLR 22SCT, 22T. HPI Sprint 2, WR8, RS4 Sport 3. Pro-Line Racing PRO-2 SC, PRO-2 Buggy, PRO-MT. ECX Ruckus Monster Truck 2WD & 4WD, Circuit Stadium Truck 2WD & 4WD, Torment SCT 2WD & 4WD, AMP Monster Truck 2WD, AMP Desert Buggy.