It's a DPM product sold and sent from Israel. If you must have a DPM product, then order it from the source, DPM System Technologies Ltd. who are, btw, located in Greece. That said, I use Big Taco's made in America steel guide rods, which can be purchased from - BT Guide Rods. Every "Operator" I know of who use Glocks install the BT's on their sidearms, as well as any other that come with plastic guide rods.
Watch his hands in the video. With-both hands stay holding to the gun, w/o-his left hand lets go... Or he lets go which would allow for more muzzle lift.