Cable cable 250 cm Ø 2.5mm with cylinder nipple 6.5x6 Engine gear train. Cylinder nipple Ø: 6.5mm x 6mm length (+ thin Ø 4 mm 8.5mm). Length (mm): 2500. Outer Ø (mm): 2,5. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.