These Flexible, Coiled PEEK Tubes will expand and contract which will save space in places such as behind an instrument and provide a Pulse Dampener Effect for Parabolic Flow Fluids which will result in a quieter base line and also reduce band broadening due to excess tubing lengths. This coil is 50mm wide when resting and 200mm when fully extended, with a total tubing length of 1225mm, end to end. Color Coded: Yellow for 0.007" (0.18mm) ID