Been on the look out for one of these for a while. This one extends to the standard competition height of 10ft, but is adjustable so you can set it at 8ft (which is the height they play in first schools). Decent ones on Amazon are well over £100, with the cheaper ones getting pretty poor reviews.
£54.99 +£2.99 delivery
The portable basketball hoop has an adjustable height from 7.5 feet to 10 feet.
The Lifetime Streamline 44-inch portable basketball goal offers convenience and fun.
* The basketball goal is designed with a telescoping height adjustment feature which allows you to adjust the pole from 7.5-feet tall to 10-feet tall in 6-inch increments without the use of tools
* Convenient roller base allows you to relocate the system
The Streamline 44-inch goal comes with an Impact backboard molded from high-density polyethylene plastic to withstand outdoor elements
*As soon as you assemble the basketball system, you can use it with no waiting for cement to dry
*The system features powder-coated steel to prevent rusting