I missed for a new curtain still ~ 15 of these X-slider, ~ 30 I had that had been times in a cheap curtain rod here, so no high-quality. But when attaching the glider to the curtain it was still a quality difference as day and night: The old flutschen easily clean, with this one I need per glider ~ 1 minute to it is properly seated. Reason: This thing has (not trimmed) which hook directly at the end of several edges in every little thread. Well the one that needs only 1 * Attach the life of a curtain.