Black receivers are said to be a trademark of the Rinnegan. Wielders of the dōjutsu are able to generate the rods from their own bodies, usually from the palms of their hands. However, there have been several instances in which black rods were produced through other means:
- While connected to the Demonic Statue of the Outer Path, Madara Uchiha produced a black rod from Hashirama's artificial body and identified it as a physical manifestation of his will. He then told Obito Uchiha to use it when performing the Six Paths Technique.
- Black rods have been seen protruding from the Demonic Statue's midsection at times. On one occasion, these rods pierced Nagato's back and drained him of his life force, which allowed him to control the statue.
- Black rods have sprouted from Obito's artificial right half on several occasions: upon first awakening his Mangekyō Sharingan and using Wood Release, when Madara used the rods to control his actions, and when Black Zetsu first coated his body and forced him to revive Madara.
- When Obito was the Ten-Tails' jinchūriki, he converted one of his Truth-Seeking Balls into six black receivers, which he used to activate the Six Red Yang Formation.
Black receivers are formed out of chakra, which takes on a consistency similar to metal. They are durable enough to break steel scalpels, as well as sharp enough to pierce through human bodies with ease. Though durable, the rods can still be destroyed when struck with sufficient force, and their creator is able to break them apart without any apparent difficulty. Once formed, the user can transmit chakra to these receivers from across vast distances, though for best results, they must be nearby and at a high elevation. Though chakra being sent to these receivers can be sensed, a skilled user can prevent their location from being discovered by constantly changing the frequency of their chakra. Offensively employing receivers from afar carries a risk, as those with sensing capabilities can trace the transmitted chakra back to the user when pierced with one. When receiving chakra, the black rods noticeably heat up.
By stabbing an opponent with the rods, the user can transmit their chakra into the target's body, disrupting their own chakra and throwing off their movements. The user can fully immobilise the target by stabbing them with multiple rods, as well as prevent them from moulding additional chakra by piercing their tenketsu. Provided the user is close enough, they can potentially control the target's movements, though this can be resisted if the target's own chakra is powerful enough. Aside from being stabbed, simply touching the receivers can apparently also incur negative effects, though Rinnegan wielders are seemingly immune.
Chakra receivers are also used to control the Six Paths of Pain: six reanimated corpses that possess copies of the Rinnegan, granting them a shared field of vision with their creator. Nagato controlled his Six Paths of Pain using numerous receivers fashioned into piercings, which were implanted all about their bodies, whereas Obito had a single rod implanted in each body's chest. Among other Rinnegan abilities, the bodies are capable of producing additional rods to serve as weapons. As they are controlled by the user's chakra, opponents can prevent these bodies from moving by removing all of their receivers. The receivers implanted in Obito's Six Paths of Pain doubled as a means of temporarily binding the chakra of the tailed beasts sealed inside the Demonic Statue to their bodies, making them into jinchūriki. When they entered Tailed Beast Mode, the receivers would relocate from the jinchūriki's chests up to the tailed beasts' necks. The creatures Nagato summoned through the Animal Path were also embedded with numerous receivers, suggesting he controlled them in a similar manner.
When employed offensively, the black rods make for effective weapons. They can emerge from the user's hand to stab opponents, be broken off and wielded like swords, or be launched as high-speed projectiles, and the size and shape of the generated receivers can be adjusted to fit the situation. Obito is shown employing black receivers fashioned into giant stakes as projectiles, ejecting them from Kamui's dimension to pierce and pin targets. He can also manifest chakra chains to bind those touching the receivers with an even greater binding power. In the anime, the user can also apply shape transformation to the rods after launching them, altering them into more elaborate forms.
- Obito implied the binding power of the black rods is related to the Outer Path. However, Madara was able to use their binding power even after losing his Rinnegan.
- Similar to Truth-Seeking Balls, black receivers appear to hinder the regenerative qualities of Impure World Reincarnation to some extent, as the wounds of reincarnated individuals do not immediately heal while the rods are pierced through their bodies, though they do eventually heal.
- Naruto Uzumaki used something similar to black receivers when he shaped his Truth-Seeking Balls into rods and used them to immobilise Madara and Black Zetsu.
- In Naruto Shippūden: Shinobi Rumble, Pain's Black Needle Stab temporarily reverses the controls of those stabbed by his black rods.
- Jin no Sho, page 255
- Naruto chapter 420, page 15
- Naruto chapter 420, page 16
- Naruto chapter 428, page 13
- Naruto chapter 436, page 3
- Naruto chapter 565, page 10
- Naruto chapter 569, page 5
- Naruto chapter 661, page 11
- Naruto chapter 606, page 16
- Naruto chapter 657, page 5
- Naruto chapter 420, pages 15-16
- Naruto chapter 647, pages 8-9
- Naruto chapter 512, pages 8-9
- Jin no Sho, page 247
- Naruto chapter 447, pages 8-13
- Naruto chapter 605, page 6
- Naruto chapter 636, pages 15-17
- Naruto chapter 656, pages 16-17
- Naruto chapter 643, pages 9-11
- Boruto: Naruto the Movie novelisation, chapter 5
- Naruto chapter 418, page 14
- Naruto chapter 381, page 1
- Naruto chapter 433, page 7
- Naruto chapter 437, page 6
- Naruto chapter 436, pages 3-4
- Naruto chapter 435, pages 11-12
- Naruto chapter 441, pages 12-15
- Naruto chapter 381, page 3
- Naruto chapter 420, pages 8-9
- Naruto chapter 444, pages 3-4
- Naruto chapter 673, page 9
- Naruto chapter 421, page 15
- Naruto chapter 565, pages 9-11
- Naruto chapter 378, page 1
- Naruto chapter 443, pages 3-4
- Naruto chapter 570, page 4
- Naruto chapter 569, pages 5-6
- Naruto chapter 636, page 5
- Naruto chapter 442, pages 7-9
- Boruto: Naruto the Movie
- Naruto chapter 598, pages 9-10
- Naruto chapter 569, page 10
- Boruto episode 135
- Naruto chapter 680, pages 10-11
- Naruto chapter 661, page 13
- Naruto chapter 675, pages 10-11
- Naruto chapter 688, page 6