35mm x 11.5mm. Clicks onto the Newly combined wall clip and joiner.
Twister suspenders or rods fit in from below and turn to lock or release.
G-top square rods also fit over. Can fit right up to ceiling, when it is self-aligning.
IMPORTANT: 'Cobra' suspenders do not fit into any of the Newly rails. 'Twisters' will fit into most Clip rails.