Weighing in at 25.8/28.3/32g for the 250/300/350mm respectively this CNC anodized black aluminum alloy X-Beam for Voron v2.4 and Trident is a serious lightweight (in a good way).
This cuts the weight of your x-extrusion by more than half while offering great structural strength and rigidity. Add to that, it includes threaded holes for your linear rail (MGN12) and you save even more weight by removing nuts typically required to mount your rails (which are heavy!).
No brainer, get it - you'll thank us later.