Apple don't describe the current iPod Classic 160GB model as either 6th Generation or 7th Generation, it's just that the current iPod Classic model followed the 5th Generation and vendors have taken it upon themselves to label it such. Since the 5th Generation models the iPod Classic 160GB has been through two iterations - fat and thin. Originally the 160GB capacity was achieved through a dual platter hard drive - hence the fat descriptor. Since the Classic 160GB's relaunch in 2011 it has used a single platter hard drive - hence the thin descriptor. This model is exactly the same as: Apple iPod classic 160GB - Black - 6th Generation
. Do yourself a favour, save £30 or so by buying the current model described as 6th Generation as it is exactly the same as this model but cheaper [think about it why don't amazon.co.uk directly sell the 7th generation model - because it's no different to the 6th generation model, that's why].