identical to tthe Addkins beta with 20 x 15 top plate but its onl y has the 15 x 15 base on it. the bases are interchangeable but i think it has to be from INSTA. The base has a small chunk out of the rubber at the back left edge but thats replaceble pretty cheap.
I think id like offers around the £500 mark and pick up as it weighs a damn tonne, harldy been used is badged as METRO SPORT as they used to rebadge this in newcastle.
PS INSTA were the original design that AAdkins copied ;).