Flexible plastics vacuum cleaner core

A flexible self-supporting plastic vacuum cleaner core comprising:

• a plurality of first and second members resiliently inter-engaged alternatively end to end along a length of the core to form universally rotatable fluid tight joints between adjacent members,
• the first members each including a uniform cross-sectioned central cylindrical tubular member having first and second ends, each of the first and second ends being integrally formed with a first connection member having a part spherical male outer surface, the central cylindrical tubular member having a smaller outer diameter than the outer diameter of the part spherical outer member, and
• the second members each including a uniform cross-sectioned central cylindrical tubular member having a constant wall thickness and first and second ends, each of the first and second ends being integrally formed with a second connection member having a part spherical female inner surface, the central cylindrical tubular member having a smaller outer diameter than the outer diameter of the part spherical outer member, the first and second members being snap-fit together with the first connection members engaged inside respective second connection members to form the fluid tight joints.