This VERSASTACK water-sealed organizer is ideal for storing and protecting your small parts, accessories and long tools. Anti-rust latches and heavy-duty handle make this organizer tough and reliable while side latches allow you to securely stack it to any other VERSASTACK module. combination of 2 long cups, 2 large cups and 6 small cups. Compatibility - side latches allow for secure connectivity to additional versastack module.