Proven Airtight Butyl Rubber Quality - Guaranteed Duro Branded Inner Tubes;Re-enforced valve seam - Reduces tearing around the valve;Presta valve - Universal size, including dust cap and lock nut;Fits 700c tyres (18mm, 19mm, 20mm, 21mm, 22mm, 23mm widths);Fastest delivery via letterbox flat-packing - Brand new without box

• DURO Branded Cycle Inner Tube - 700 x 19-23 size - Road/Race Bike - (Universal Presta Valve)

DURO Branded Cycle Inner Tube - 700 x 19-23 size - Road/Race Bike - (Universal Presta Valve)Duro