Lucky Line Extra Large Magnetic Key Hider Case Key Holder for Large Keys (9121)

Works well on magnetic material. The container is a little bigger, which is nice.

Now I must say I did not use this for a large car key! It is used for a regular store or house key, so would not be under a tire well or bumper so I can not tell you if it stays put or not under those conditions. But it stays hidden where I have it and has not been jarred loose. the box is actually big enough for several keys so it you needed more than one lock and hidden keys for each, this is big enough. it is easy to open and easy to put back in place, no complaints from me.

Gostei muito do produto, tem espaço para várias chaves e um imã muito forte que faz com que não se tenha medo do produto cair de onde é colocado.

Nice product, easy to hide.

Works great