Breakdancing Gear Made by the Ninja
www.gymnasticbodies.com/ – Get big muscles training with rings
Thin-Soled Shoes Like the Adidas Gazelles or Onitsuka Machu Racers
Headspin Spin Hat https://spincontrol.co/
Encyclopedia of Bodybuilding by Arnold Schwarzenegger – Get strong with weightlifting
Stretching Scientifically by Thomas Kurz – Best flexibility training out there. Just buy it.