
BoBo III is a cut based on alternating rotations of two packets. The move begins by extracting the bottom packet with the thumb and little finger, then rotating it with the corner of the second packet. The second packet is subsequently rotated by extending the middle finger, which is then used once more to rotate the first packet and bring it to the top of the deck.
First tutorial in Zeusy's 4x4 Tutorials video. The flourish cleverly displays multiple "bunny ears" with packets.