Sometimes, pulling cable can be a real pain! AudioQuest's new FLX/SLiP series of in-wall speaker cables has been designed to make your life at least a little easier. While there is no perfectly slippery cable, we believe that the materials and shape used for FLX/SLiP are at the forefront, making these the most slippery cables possible. SLiP 16/4 features Semi-Solid Concentric Packed conductors that reduce harshness and confusion. Long-Grain Copper (LGC) has less grain junctions and lower distortion which preserves clarity and naturlness. SLiP 16/4's low-Inductance Spiral Geometry minimizes the sound going out-of-focus as length increases. The EasySLiP Minimalist Outer Jacket is UL-Rated for in-wall use (CL3, FT4).