The purpose of locking wheel nuts is to keep your wheels safe and securely attached to your car.
In order to remove a locking wheel nut, you need a so-called wheel nut key.
The vehicle manufacturer usually provides this unique key, and you would typically find it either:
In the glove box, in the boot under the carpet or the side compartments. Sometimes it is stored under one of the front seats or in the seat pockets.
As great as it is having your wheels secured - as bad it is if you lose this key.
Locking wheel nut removal Merthyr Tydfil - Tyreman Tyre Fitting Centre!
If you lose it or it's missing for some reason (be careful when buying a second-hand vehicle, always check, the locking wheel nut key is there) or if it is damaged, you will not be able to take the wheels off.