These Dark Matters leaders feature the Heli-Safe system and can be fished with any helicopter-style setup, whether that’s a standard underline or a chod-rig. This leader contains tungsten to ensure it stays on the bottom. It also includes the Chod Safe system that ensures your underline can detach from the leader in case your main line breaks. Your rig can be easily attached via a QC Ring Swivel. The other end has a fused loop to which your main line can be attached. The Dark Matter rig material is highly abrasion resistant and has a break strength of 40 pounds.