The telescopic supports are made from a heavy-duty aluminium body for strength and rigidity, the pole adjusts and locks from 1140mm - 2895mm and makes it the perfect partner for holding boards in place until fastened. 30kg max load 2x Telescopic Drywall Supports Heavy-duty aluminium body Positive clamp system 1140-2895mm extension 30kg max load PLEASE NOTE THE 13KG MAX LOAD PRINTED ON THE BOX IS A MISS PRINT / ERROR - THE MAX LOAD IS 30KG PER SUPPORT.