A telescopic mast comprising: a first tubular section; a second tubular section having a locking member mounted thereto, wherein the first tubular section is slideably disposed within the second tubular section, and wherein the locking member is moveable in a radial direction relative to the second tubular section to bear against the first tubular section; and a third tubular section having a disengaging block mounted thereto, wherein the second tubular section is slideably disposed within the third tubular section, and wherein the disengaging block is shaped to guide the locking member radially outwards and disengage the locking member from the first tubular section when the mast is collapsed, characterised in that the third tubular section further comprises: a second locking member (31, 52) which is moveable in a radial direction relative to the third tubular section to bear against the second tubular section, and a flange portion (34, 56) extending from an outer surface thereof, wherein the flange portion is rotatable about the longitudinal axis of the third tubular section, the flange portion (34, 56) being cooperable with the second locking member (31, 52) such that rotation of the flange portion (34, 56) about the longitudinal axis moves the second locking member (31, 52) in the radial direction relative to the third tubular section. a first tubular section; a second tubular section having a locking member mounted thereto, wherein the first tubular section is slideably disposed within the second tubular section, and wherein the locking member is moveable in a radial direction relative to the second tubular section to bear against the first tubular section; and a third tubular section having a disengaging block mounted thereto, wherein the second tubular section is slideably disposed within the third tubular section, and wherein the disengaging block is shaped to guide the locking member radially outwards and disengage the locking member from the first tubular section when the mast is collapsed, characterised in that the third tubular section further comprises: a second locking member (31, 52) which is moveable in a radial direction relative to the third tubular section to bear against the second tubular section, and a flange portion (34, 56) extending from an outer surface thereof, wherein the flange portion is rotatable about the longitudinal axis of the third tubular section, the flange portion (34, 56) being cooperable with the second locking member (31, 52) such that rotation of the flange portion (34, 56) about the longitudinal axis moves the second locking member (31, 52) in the radial direction relative to the third tubular section. a second locking member (31, 52) which is moveable in a radial direction relative to the third tubular section to bear against the second tubular section, and a flange portion (34, 56) extending from an outer surface thereof, wherein the flange portion is rotatable about the longitudinal axis of the third tubular section, the flange portion (34, 56) being cooperable with the second locking member (31, 52) such that rotation of the flange portion (34, 56) about the longitudinal axis moves the second locking member (31, 52) in the radial direction relative to the third tubular section.