If you have external door locks on your van when you take the locks off when you open the van the locks can easily get lost during a busy working day. At the end of the day you will have to spend time looking for your Lock before leaving your van for the night. This product will solve this problem. Simply screw the lock holder to the inside of your van. When you come to lockup you will always know where the lock is. This holder is compatible with "Master Van locks" only. Other van locks will not fit correctly. This item is designed and manufactured in Dorset, England by Maneesh Reid