Special bags for use with a triangular corner trash can alternative, with deodorizing and antibacterial agents. Unused pack contains 40 bags, and there are probably about 19 bags left from a used pack. - Contents: 40 bags - Application: For use with triangular corner trash can alternatives - Size: Approximately 320mm x 240mm - Features: Uses deodorizing and antibacterial agents The special ring I was using is included as a bonus, but please let me know if you don't need it. Thank you for looking.