You are purchasing one each new in the box NACHI BEARING part number 6204-2NKZZ ball bearings as shown in the pictures. These are stainless steel and single sealed. The bore is 20mm diameter, outside diameter is 47 mm, width is 14 mm.
Shipping will be by buyers choice of First Class or Priority Mail. Please note that most of the time I am not available on weekends and will answer messages on weekdays. Thanks for looking!