>>8589186>The one on the left side of the photo has a gap at the shoulder joint, this is how you can tell which version you've got in package>The one on the right has no gap in his shoulder.So I have 4 Trap-Jaws, and it's obviously better to have the hinge shoulder. The two on the left seem to be the hinge, but the two on the right technically also have a gap, though it isn't as prominent as the other two. But the post states that the no hinge has no gap. Are they the hinge ones or no?