The handle is made of high quality plastic exterior, the inside of metal, giving the handle stability and weight. The front part is rubberized and slip resistant. The handle can be simply mounted under the camera - even after you have a tripod mount centered on the optical axis. However, the peculiarity of the handle is the 2-piece molding. To get to the battery / card compartment, the handle must not only be unscrewed again. Instead there is a quick release / locking mechanism that works wonderfully. Here is the very good processing emphasized: Despite the 2-piece construction of the grip fits perfectly, locks clean and nothing wobbles. That's the way it has to be. For 70 of an otherwise non-functional handle one can expect however.
A trifle have the Olympus developer unfortunately overlooked: Had the tripod socket of the grip is not mounted on the inner part of which remains on the camera, but the part that can be solved through the lock, the handle would be a quick release for Stands have been used. So the grip unfortunately can not unlock when it is screwed onto a tripod.