panel curtain G-rail slider

produces a G-rail (http://www.nbd-online.nl/#product/176895-0/0/0/G-RAIL_paneelgordijn_voor_optimale_lichtinval_of_flexibele_afscheiding/html) slider without the tiny wheels.
The rail details are like in this document: http://www.nbd-online.nl/frame.html?page=G-RAIL%20profieloverzicht-4.pdf&title=G-RAIL%20profieloverzicht