The user forms two large lion-shaped shrouds of chakra around their hands, then attacks the opponent with them. Though its full power was not shown in the manga, in the anime, it was shown that this technique has enough power to destroy Pain's chakra rods, as well as momentarily stunning the target after the attack lands.
It is hinted that this technique can be combined with Eight Trigrams Sixty-Four Palms.
In Naruto Shippūden: Ultimate Ninja Storm 2, to execute the Gentle Step Twin Lion Fists, Hinata hits her opponent multiple times with her palms, pushing them back. Then she forms the lion heads and slams them into her opponent, where they explode and send the opponent flying back.