Size Small 39 cm steering wheel diameter. About 15"
The Disklok is a premium, high-security, full-cover steering wheel lock that prevents theft by enabling the wheel to spin freely, rendering the steering and ignition lock useless to thieves. It is widely recognized as one of the strongest anti-theft devices, made of hardened steel, and approved by UK police and Thatcham Research. Available in three sizes, it fits most vehicles.
Used, great condition. Comes with 1 key. $269 new, so this a really good deal. Cash only. Reply if you are interested!