Looks exactly like the picture. The plastic is nice and sturdy, and doesn't feel like it will crack and break if you look at it funny.
The metal clips hold the fuse very tightly, which is good. If the clips loosen up, you can squeeze them between your fingers and bend them in just enough to make them tight on the fuse again.
In order to accommodate multiple wire sizes, there is a small cylinder inside the connector. Removing the set screw allows you to take the cylinder out so you can slide it around smaller gauge wires, then slip the assembly into the connector and screw it down with the set screw. For very thick gauge wire, the cylinder can simply be omitted.
One important thing to remember that will save you a lot of frustration and confusion! The metal clips have a notch on the bottom that is keyed to fit into the center plastic piece of the fuse holder with their set screw facing straight up. If the metal clip is twisted out of alignment, you will be unable to insert it into the center plastic piece, and will be unable to screw the end caps on as well. Slip a fuse into one of the metal clips, and slip that clip into the center plastic piece. Then take the other metal clip and fit it onto the fuse and into the center plastic piece. Then slide the end caps up and screw them on.
CHOKING HAZARD -- Small parts. Not for children under 3 yrs.