After the pain of having the car robbed

it looks like I might get a replacement this week or next

Have alarmed the house and have had a shutter but up for the back of the house but am still left with having to park on the drive. Will be getting a scanner in the very near future-currently skint-but remember people speaking in good terms about those yellow wheel locks. They were made by a manufacturer I can't remember the name of.
Was hoping someone could point me in the right direction and tell me what size I need.
Thanks