Therm-a-Rest Fast & Light Mattress Snap Kit

EMS says:
Easily adapt your Therm-A-Rest(R) sleeping pad to accept the Therm-A-Rest Tech Blanket or Ventra Down Comforter for a new level of sleep comfort. This snap kit can also be used to snap two mattresses together for double-wide comfort.. Designed to work with the NeoAir, Prolite, Prolite Plus, and Z Lite sleeping pads. Therm-A-Rest(R) sleeping pads, Therm-A-Rest Tech Blanket, and Ventra Down Comforter all sold separately. . . . WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov