Magnet in base lets you grab and replace keys with one hand. If you don’t want the magnet, it can be removed (with a hex key of course).

Easily retrieve and store individual keys without having to move other keys out of the way or fight the poor fit of the stock factory holders.

Circular mounting pattern lets you quickly figure out which key is the right size for your fastener (this is always frustrating with traditional holders)

Spring puts enough tension to ensure keys stay in place, even upside down.