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It is the stoplock professional one that Halfords sell, think they are £50 and Thatcham approved. I am sure a professional thief would have it off within a minute or so, but its an additional minute and probably means them making noise and it deters any would be joyrider.
Easy to remove and fit with key and when driving I just throw it on passenger floor.
You can't stop someone stealing your car but you can make it harder, as such my car is behind locked folding gates which only fold one way and if I pull the car right upto to them, they'd need start car, back up, go open gates and then drive off. Whilst also removing steering lock, getting passed alarm, trackers etc. As such you just have to hope it is too much hassle for them or they see one down the road without the security and take that instead.
Also if your car has keyless entry make sure the keys are stored in the special pouches that reduce signal range and are kept in tin boxes, microwave etc. at night to block the signal. If they want it they can break in to get the keys, get passed the dog, then figure out how to open gates, get lock off etc. all whilst I am calling cops and well the cop station is 2 minutes drive from my house so quite handy to deter them as well.
Thanks mate for the info