A barrier connection system comprising at least one pair of connectors, each connector including:a mounting section for attachment to a barrier, the mounting section having inner and outer faces; first and second connector elements at respective ends of the mounting section; the first connector element including an inwardly extending flange that is spaced from the inner face of the mounting section to at least partially define a recess therebetween; the second connector element including an outwardly extending flange; the inwardly and outwardly extending flanges being dimensioned and orientated such that in use, the outwardly extending flange of each connector is receivable within the recess of the other connector.