This auction is for a pack of five (5) Clutch Housing O-Rings. These O-Rings will fit the Zeebaas reel, models ZX20/ZX22/ZX25/ZX27 part number 21124. The O rings are black in color, and round in shape. temperature applications between -65 degrees F to 450 degrees F. They have good resistance to penetration, puncturing, ozone, weather, and salt water. Thank you for looking.