An assembly for guiding and protecting optical fibre cables or optical wave guides comprising: a first number of first guide tubes (72, 74) and a second number of second guide tubes (76, 78), said first and second number is equal to or greater than two, each of said first and second guide tubes (72, 74, 76, 78) being adapted for receiving an optical fibre cable along its complete length and each of said first number of first guide tubes (72, 74) and said second number of second guide tubes (76, 78) are circular cylinders with same outer diameter and defining a central axis, where the central axes of the first and second guide tubes are in the common plane; said assembly further comprising: an elongated first tubular shell, and an elongated second tubular shell, said first number of first guide tubes (72, 74) being supported within and in parallel relationship with said first tubular shell, and said second number of second guide tubes (76, 78) being supported within and in parallel relationship with said second tubular shell; said assembly further comprising: a first connecting strip interconnecting said first and second tubular shells (106, 108), defining a separation between said first and second tubular shells (106, 108), and positioning said first number of first guide tubes (72, 74) and said second number of second guide tubes (76, 78) in parallel and in the common plane, said first and second tubular shells (106, 108) and said first connecting strip originating from a single extrusion process establishing an interference fitting between said first and second guide tubes (72, 74, 76, 78) and said first and second tubular shells (106, 108), respectively and wherein the connecting strip is in parallel relationship with the common plane, and characterised in that the connecting strip defines a separation to the common plane, that is one sixth of the outer diameter of the guide tubes (72,74,76,78), or one third of the outer diameter and wherein the connecting strip is flexible to allow the assembly to flex along the connecting strip. a first number of first guide tubes (72, 74) and a second number of second guide tubes (76, 78), said first and second number is equal to or greater than two, each of said first and second guide tubes (72, 74, 76, 78) being adapted for receiving an optical fibre cable along its complete length and each of said first number of first guide tubes (72, 74) and said second number of second guide tubes (76, 78) are circular cylinders with same outer diameter and defining a central axis, where the central axes of the first and second guide tubes are in the common plane; said assembly further comprising: an elongated first tubular shell, and an elongated second tubular shell, an elongated first tubular shell, and an elongated second tubular shell, said first number of first guide tubes (72, 74) being supported within and in parallel relationship with said first tubular shell, and said second number of second guide tubes (76, 78) being supported within and in parallel relationship with said second tubular shell; said assembly further comprising: a first connecting strip interconnecting said first and second tubular shells (106, 108), defining a separation between said first and second tubular shells (106, 108), and positioning said first number of first guide tubes (72, 74) and said second number of second guide tubes (76, 78) in parallel and in the common plane, said first and second tubular shells (106, 108) and said first connecting strip originating from a single extrusion process establishing an interference fitting between said first and second guide tubes (72, 74, 76, 78) and said first and second tubular shells (106, 108), respectively and wherein the connecting strip is in parallel relationship with the common plane, and characterised in that the connecting strip defines a separation to the common plane, that is one sixth of the outer diameter of the guide tubes (72,74,76,78), or one third of the outer diameter and wherein the connecting strip is flexible to allow the assembly to flex along the connecting strip.