RC crawler enthusiasts, upgrade your rig with these tough 1.9-inch aluminum beadlock wheels! They're CNC machined from 6061-T6 aluminum and have a cool anodized black finish with red aluminum nut caps. The beadlock design (with a faux ring) helps keep your tires securely mounted during extreme off-road action. They have a standard 12mm hex drive and a 4mm axle hole. Each wheel has an outer diameter of 55mm (2.16 inches) and is 26mm (1.02 inches) wide. They're compatible with a ton of popular 1/10 scale crawlers like the Traxxas TRX-4, Axial SCX10, SCX10 II, Wraith, RR10 Bomber, RC4WD models, and more (note: not for SCX10 III). The package includes everything you need for four wheels: the wheels, caps, all the hex screws (silver and black), lock nuts, a cross wrench, and hex keys. Just check your truck's backspacing to ensure they'll clear your axles!