You can dye a 24 step color wheel with just red, yellow and blue dye. It's a lot of fun. You can dye in jars which is very easy for 1/2 yars or 1/4 yards. I have taught classes and there is a lot you can do. Pro-Chem will send you the instructions for free. You can purchase fabric that is marked PFD - Prepared for dying or you can wash your fabric in Synthropol before hand. It is a lot of fun.