I have used one of these boxes for my jig heads and rigged softies for years, I find it perfect for fitting most of my jig heads etc inside. It also fits perfectly in most sling bags, I can fit 2 lure trays (standard double sided) and one of these Zebco trays in my Snowbee Sling Bag. See the thumbnail pictures for the selection of jig heads and softies i have in mine.
One side is sectioned off into 5 parts, ideal for keeping your jigheads or weedless hooks separate. The other side is one section, which allows you to put your used/rigged softies in.