The user attaches one end of a wire string to a shuriken and the other end to a kunai. The user throws the shuriken at a target, expecting that the target will dodge it. The user then loops the kunai around a tree (or something similar) and throws the kunai, which the target will also dodge. When the kunai reaches the end of the string's length, it pulls the shuriken back towards the target, striking them from behind; Rin no Sho compares the action to a yo-yo. Because the manoeuvre's effectiveness relies on anticipating the target's movements, having the Sharingan is invaluable to its success.
When Sasuke Uchiha uses this technique against Orochimaru, Orochimaru is able to capture the returning shuriken. Sasuke planned for this, allowing him to send Fire Release: Dragon Fire Technique at Orochimaru along the shuriken's string.