My husband needed these resistors and they work very well. This kit has 525 different pieces of resistors with 17 different values so you definitely have the ones you need for the project you are working on. They come in a case for easy storage so none get lost and there is a chart that shows you each different color and which each one is that makes it simple to find what you are looking for. I am happy with this kit and the resistors are well made and work like they should.