- "Grappling line, paralyzing darts, repulsor. All designed to combat the abilities of the Jedi."
- ―Fenn Rau, describing the parts of a pair of Mandalorian vambraces
A grappling line functioned much like a whipcord thrower, but instead fired an glowing yellow energized line that could not be cut by a lightsaber. Mandalorian vambraces usually featured a grappling line. Sabine Wren used a grappling line to entangle Kanan Jarrus, who was able to slash at the line and free himself - though did not cut the line. Later, Sabine was able to fire the line accurately enough to retrieve the fallen Darksaber, in order to continue her duel with Kanan.