If you are reading this you are anxious about your quad being stolen - This is a Quad Clamp and fits all types of quad as it is height adjustable - please see look up Quadclamp on the internet . If you are relying on a ground anchor and chain - worry as the modern Scroat comes tooled up with a portable grinder and four foot bolt croppers - as I know to my cost. This bit of kit is will defeat yer Scroat and as far as I know is the only system that the NFU give a 5% discount on insurance premium. I welded the two columns to a 4" box section and concreted into floor bit overkill but then I'd had one stolen. If you wish I can take off the two locks and you can bolt to floor as it comes with the unused brand new original shear head bolts and drill bit to fit. It comes with two sets of keys. If you check the website you can see they cost £299.00 plus delivery - I could not get them any cheaper when I bought these in Feburary 2015. Each lock weighs 20KG - it is a serious bit of kit - Grab yourself a bargain and save your quad being another grim statistic.