Mimgo Store Front & Rear Inner Outer Wire Gear Shifter Cable Housing Kit Brake Cable Set Universal Bike Bicycle Shifter Cable Material: Low Friction Polymer Shift Cable Casing: 2.5m/98.43" (diameter 4mm) Before shifting inside: 155mm/61.02" After shifting inside: 210mm/82.68" Super-durable plastic layer, cold weather resistant. Low compression and low-friction polymer liner.