Combo: Hoop Seat - Knee Lock (Part of Mermaid Choreography)
1. Hoop Seat Combo
2. Hoop Seat / Knee Lock Fabric Brain
3. Knee Lock Flip (search for the detailed tutorial in the search bar)
4. Mermaid Shape into Tension Lock (search for "Combo: Knee Lock - Mermaid - Tension Lock (Part of Mermaid Choreography)"