Product review (5 stars): Perfect Fit
It seems every refrigerator manual still recommends using copper tubing to hook up a water source. Don't go there. Bought this as part of an installation for the icemaker on a refrigerator for the section between the water tap and the filter. Each end has a fitting designed for a 1/4-inch compression joint and worked perfectly. You'll need a 1/2-inch wrench to tighten. The braided covering over the 1/4-inch tubing appears to be polyester or something similar; it doesn't restrict the movement of the tubing and is designed to protect it from abrasions and cuts. If this item was out where I could see it I would have opted for something with a white braid, but this was the right price for this job. I dressed it up where necessary for neatness and strain relief with 3/8-inch clips, which fit snugly.