The Trajan crimper/decapers are constructed of tough, light-weight glass-filled plastic for strength. The ergonomically curved handles design conforms to your natural grip, which greatly improves comfort over blocky metal grips.
The bottom-pull handle design is steadier to hold than top-push handle designs. The head does not wobble. It is easy to hold the tapered jaws of the crimper in a stable position, as the bottom handle is pulled up.
The adjustment knob is conveniently positioned at the head of the crimper, clearly displaying + and - symbols along with directional arrows. This simplifies adjusting the intensity of crimp desired.