Audtek Electronics FBC-50 Flat 16 AWG OFC Braided Speaker Wire 50 ft.

Flat braided copper 16 gauge 120/38 strand speaker wire with a white extra flexible PVC insulation. Surface print on one conductor for easy identification and polarity. Perfect for running under carpet or along baseboards for concealing wire to left, right, or surround speakers. Nominal O.D.: 0.098" x 0.4" (2.5 x 10 mm) ±0.2 mm.

eBay