16/4 250FT 16AWG Gauge 4 Conductor in Wall CL2 Rated Outdoor Direct Burial UV Speaker Wire HIGH Strand Audio Cable Black CL2 Rated Outdoor Direct Burial UV 16-Gauge 250ft Black 16/4 AWG 0.16mm Stranded Conductor. CCA(Copper Clad Aluminum). PVC Jacket, UV and Fire Retardant. Polyethylene terephthalate film (PET) Easy tangle free pull box. Running feet printed every 2ft on the cable, makes measuring easy Use for Indoor and Outdoor applications RoHS Compliants, ISO-9001 Certified