Hey RC enthusiasts! These INJORA shock flex blades are exactly what your TRX4M Defender or Bronco needs for that serious crawling performance. Weighing just 8 grams each, these CNC machined aluminum blades are lightweight yet super durable with that slick black anodized finish. What they do is give your suspension way more articulation - meaning your wheels stay planted on the ground when you're tackling those gnarly obstacles. Installation is straightforward and they fit right onto your stock TRX4M shock mounts. I've noticed a huge difference in how my crawler handles rough terrain - no more wheels lifting off when climbing over rocks or logs. The quality is seriously impressive for the price, and they just make your RC rig look more professional too. Whether you're crawling indoors or taking on outdoor trails, these flex blades help maintain traction and control. They're compatible with TRX4M models and honestly one of the most effective upgrades you can make for better performance. The precision machining means perfect fit every time, and they're built to withstand the bumps and scrapes that come with serious crawling. If you want to take your TRX4M to the next level, these flex blades are definitely worth checking out!