Kodak Dektol paper developer can be used with any standard Black & White printing paper for brilliant whites and rich blacks with a long tonal scale. A flexible developer, Dektol can help control print contrast by varying dilution. One gallon mix is in powder form and must be mixed with water before use.
Comments about Kodak Dektol Paper Developer, 1Gallon mix:
These days, it's difficult to get the chemicals for developing your pictures manually. While the supply lasts, you should definately get one.
Instructions may be confusing, but there are plenty of on-line help.