Shower curtain rail, special length

HEWI Range 801 Shower curtain rail
horizontally arranged rails connected at right-angles in U-shape, with metal core, lengths A1 and A3 made-to-measure from 220 mm to 1683 mm, length A2 made-to-measure from 320 mm to 1667 mm, length at rose ends can be shortened, with a corresponding number of curtain rings made of polyamide, rail diameter 33 mm, rose diameter 70 mm, made of high-quality matt polyamide in HEWI colours 99 (pure white), 98 (signal white), 97 (light grey), 95 (stone grey) and 92 (anthracite grey), 2 ceiling supports required, including non-corrosive fixing material.
Recommendation! When ordering please clarify dimensions and/or features and options