Mounting apparatus for mounting an endless cord (2) which is expandable from a contracted condition to an expanded condition onto an end (1) of a structure having a transverse dimension greater than that of the cord when in the contracted condition comprising a tapered adaptor (14 114) for the cord to be propelled over onto the end of the structure having a forward smaller end (16 to 116) for location in the cord in its contracted condition and a rear larger end (18 118) for juxtaposing with the end of the structure and an expander device (24 124 224) movable relative to the adaptor to propel the cord over the adaptor onto the rear larger end thereof.