Abstract: The present invention is directed to a kit for direct mail solicitation. The kit includes a first envelope having a window, a second envelope having a window and an insert. The second envelope is sized for insertion into the first envelope. The insert is sized for insertion into the first envelope. The insert has a first and second portion which are integral. The first portion is defined by first and second sections. These sections are detachable from one another. The first section is sized for insertion into the second envelope after detachment from the second section. The first section comprises a non-releasable label having a first and second identification thereon. The first identification is located on the non-releasable label of the first section such that when the first section is inserted into the second envelope, the first indentification is in registry with the window of the second envelope. The second portion of the insert comprises a releasable label having the second identification thereon.