RC crawler enthusiasts, listen up! This set of four brass wheel weights is one of the simplest and most effective upgrades you can make to your 1/10 scale rig. Each weight is a hefty chunk of brass that bolts directly onto your wheel's 12mm hex hub, between the hub and the wheel itself. The set totals 340 grams (about 0.75 lbs), adding significant unsprung weight right at the wheels. Why do this? It lowers your truck's center of gravity dramatically, which makes it much more stable and less likely to tip over when climbing over rocks or on steep inclines. The difference in side-hill stability and crawling performance is often night and day. These are the 'extended' style, meaning they widen the track width by about 6mm on each side (12mm total), which further improves stability and can help with clearance. They're compatible with a huge range of popular crawlers that use a 12mm hex, like the Traxxas TRX-4/6, Axial SCX10 II/III, and Redcat GEN7/GEN8, as long as you have 1.9\ or 2.2\ wheels. The brass is durable and looks great. Installation is straightforward – you just need to remove your wheel, slide the weight onto the hex, and remount the wheel. It comes with the necessary screws. A must-have, budget-friendly mod for any serious crawler that wants to tackle tougher lines.