Stranded Wire: Black, 20 AWG, 40 Feet

This is a spool with 40 feet of black 20 AWG stranded copper hook-up wire.

12 AWG Black Arctic Ultraflex Blue Wire

Audiopipe 50' ft 18 Gauge Red Black Stranded 2 Conductor Speaker Wire for Car Home Audio Installation

Stepper Motor: Unipolar/Bipolar, 200 Steps/Rev, 42×48mm, 4V, 1.2 A/Phase - Opencircuit

DRV8874 Single Brushed DC Motor Driver Carrier - Opencircuit

5V, 1A Step-Up/Step-Down Voltage Regulator S13V10F5 - Opencircuit

SIMpull THHN® Copper Wire

FTDI Cable 5V - Robot Gear Australia

Big Pushbutton Power Switch with Reverse Voltage Protection, MP, POLOLU-2812

Hook-up Wire Spool Set - 22AWG Stranded-Core - 10 x 25ft - Opencircuit

Stranded Wire: White, 20 AWG, 40 Feet - Pololu

Cerrowire 100 ft. 14/3 Black /White /Green Stranded Copper THHN Wire 112-341253C - The Home Depot