epickidstoys.com
HoverSeat HoverKart Accessories for Self Balancing Scooters and Hoverboards for Kids and Adults! Fits 6.5 8 10 and most models by Swagtron, Hovertrax, Swagway X1, Powerboard, Sogo, and many more! - Epic Kids Toys
QUICK AND EASY TO INSTALL - A few seconds can make your Hoverboards a GoKart! FITS MOST MODELS - Fits for 6.5" 8" 10" Hoverboards! FUN FOR ALL - Adults and kids can both use GoKart as it has adjustable seating positions