Lean to Turn™ Hoverboard – Official Little Tikes Website
Amazon.com : Hoverboard Seat Attachment for Self Balancing Scooter, Go Kart Conversion Kit with Adjustable Frame, Hover Board Accessories for Kids Adults, Wide Chair, Easy to Control, Fits 6.5'' 8'' 10'', Black :
11.5 inch big hoverboard
All-Terrain Hoverboard 8.5″ Big Wheel Self Balancing Scooter with Bluetooth and LED Lights – Oz Robotics
the Q installs formula 1 wheels on a regular hoverboard