This kit provides a mix of sensors, LED's and other items to get you started wokring with Arduino microcontrollers
All components come in a handy storage case
9V Wall Adapter
Male to Male Jumper Wire
Through hole resistors
Potentiometer With Big knob
Three digits 7-seg LEDs
I have been dealing with MCM for over 30 years now. If I didn't like the service I'd would have found a different supplier 30 years ago. For most of my needs they are the 1st stop on my shopping list.