Size: Inner diameter 7cm/2.75" for 6.5" or 10" scooter. Suitable for hoverboard that circumference of intermediate shaft less than 22 cm. Lenth 50-96cm/19.69"-37.8" stretchable, adjustable height for kids and adults.
More Control ? Security: You can be lifted easily over every obstacle with the handlebar the hoverboard, gives the driver a sense of more control and security. Ideal for beginners and advanced.
Material: Made of superior aluminum alloy and ABS, anti-rust and durable.
Easy to install: Open the ring closure,place the ring in the middle of the hoverboard, lose the ring, finished.
Note: Electric self balancing car not included. 100% brand new with good quality. Only for more safety, not for direction control!