Southwire SIMpull 3-AWG Stranded Black Copper THHN Wire (By-the-foot) in the TFFN & THHN Wire department at Lowes.com
6 Gauge Wire - 10 ft length - AndyMark, Inc
Guide to Electrical Wire Sizes
THHN Building Wire 1 Awg Black
UBL 18/5 Automotive Electrical Wire - 18 AWG Stranded Cable - Flexible Low Voltage LED Cable - Best Choice for Powering High Amperage Sirens or Light Bar (10 Feet): Amazon.com: Tools & Home Improvement
Pololu - Stranded Wire: Red, 28 AWG, 90 Feet
Electrical 101: Wire Information (Size, Amps, Type) - YouTube
A Guide to Wire Gauge Sizes - Precision Manufacturing Company Inc.
American Wire Gauge (AWG) Cable Conductor Size Chart / Table | Electrical wiring colours, Electrical wiring, American wire gauge
14 Gauge Wire 2 Conductor Electrical Wire 14AWG Electrical Wire Stranded PVC Cord Oxygen-Free Copper Cable 50FT/15M for Low Voltage Landscape Lighting UL Listed (14AWG 50Ft): Amazon.com: Tools & Home Improvement