This is the SparkFun LED Starter Kit, an ultimate assortment of LEDs packed into a single red box! Now, this isn’t a box filled with only one type of LED, oh no. Inside each kit you will find over 70 multi-colored and multi-functional LEDs and even more resistors to help hook everything up. All colors of the spectrum, super-bright and diffused, 3mm to 10mm, you will find plenty of options suited for almost any situation in the SparkFun LED Starter Kit.