The Disc-O-Bed Stack Adapter Kit is designed to help you save on sleeping space when camping. With these four steel pieces, you can safely stack Large or Extra-Large Disc-O-Bed or Disc-O-Bed Single cots in minutes. Simply fit the U-clip ends onto the four, patented bed discs. As it clicks into place, you know it's secure.• Can be used on all Large and XL Disc-O-Bed systems• Used with 2 Disc-O-Bed L/XL Singles to convert to bunk• Compatible with both the round and straight bed end frame• Simple, quick, and easy to use• Store in the cot system carry bag Four steel pieces fit onto the four, patented bed discs Compatible with both round & straight bed end frames Stores in the cot system carry bag | Disc-O-Bed Large and XL Stack Adapter Kit