This heavy duty quad seat walker comes with a max safe working limit 130kg, and is Australian standards certified. It features the new “light touch” lock brake system., new 15cm flat ridged wheels to minimise wheel wobble and increase grip., and easy fold rounded backrest for comfort. It can be used both indoors and outdoors , and can be folded without removing the storage bag. The nylon bag prevents visibility of valuable items. e.g. Wallet, Handbag, Keys