The key differences are material, weight, wheel size and colour: SLIDER BRAKE IS ONLY ON THE CARBON MODEL: The Slide Brakes (AKA Drag Brakes) come only with the slightly higher-spec carbon model. The Saljol Aluminium Rollator does not have the drag brake feature. DIFFERENT FRAME MATERIALS | The Carbon Rollator is made from carbon fibre - a material famous for being strong and reasonably light with this walker weighing 5.4kg. The Saljol Aluminium Rollator is made from aluminium, which is still strong, but slightly heavier at 6.6 kg. COLOURS | The Carbon rollator comes in British Racing Green, Midnight Blue and Matt Black. The Aluminium rollator comes in Pearl Grey and Magic Black. WHEEL SIZE | The Aluminium rollator has an extra-large front wheel, which has a diameter of 250mm, which is great for a smoother off-road experience. The rear wheels are 200mm. The Saljol Carbon wheels are all 200mm in diameter. DIFFERENT SEAT WIDTHS | The Aluminium rollator has a larger seat width by 1cm, at 46cm. The Saljol Carbon rollator has a seat width of is 45cm. DIFFERENT BAGS | The Carbon walker has a higher-quality bag that closes with a magnetic fastener. It is weather-proof with a waterproof transparent compartment on top, which is ideal for your smartphone. Pockets are added on the side, ideal for things like drink bottles. The Aluminium rollator has a simpler basket (net bag) that does not have side-pockets or a 'lid'. BRAKE CABLE | The Aluminium rollator comes with a one-handed brake cable should you wish to convert it to a one-handed system. The Carbon model does not come with the one-handed brake cable, but this can be ordered an an accessory. CURB ASSIST | Both come with curb assist, but they look slightly different. The Allround Walker's curb assist has a reflector and is made of a strong plastic. The Carbon model has a sleek carbon curb assist without the reflector. CANE HOLDER | Both models come with a cane holder already attached.