As a neutral grip adjustment handle, I was immediately drawn to these grips, they appear to be made of a high quality molded plastic that fit comfortably in my hands.
The ONLY drawback/criticism I have with these grips is that the "neck" following the knurling of the grip that lead into the hooks are a little on the short side. Were these "necks" extended by maybe an INCH, these would be Perfect.
The reason being is for resistance band (or non-barbell handle) use, the end of the hook is less than half an inch from my knuckle-pads. If I rotate my grip to a push or curl position, the end of the hook literally rests into the back of my hand, depending on the angle or force of resistance, can dig into the back of my hands. And if I wanted to try a pressing angle or grip, the hook presses into the underside of my palm (thenar eminence).
For my current use with bands, these are adequate and unique for their ease of use.