10 Ball Steel Garage Door Rollers (4 Inch Stem) (12 Pack)

• Package contains 12.
• 4 Inch stem.
• 7/16 Inch shaft
• 1.815 Inch Diameter
• 75-lb load
• 15,000 12ft. door cycles
• Bulged shoulders
• Steel 10 ball bearings
• Zinc plated stem
• Steel rollers