A device for transferring reagents in solid or liquid form from one place to another on an apparatus, said device comprising an upper portion, adapted to be held, and a lower portion adapted to hold reagents in solid or liquid form, in an available manner. For example, the reagents may be held within a cage structure or retained on an outer surface of the lower portion. Methods for using the device, as well as apparatus for use in conjunction with the device are also described and claimed.