Set of 12---2 Inch 13 Ball Nylon Garage Door Roller (4 Inch Stem)
12 new 13 Ball Bearing Nylon Garage Door Rollers with Shaft Length: approx 4", Roller Diameter: 1.75" for 2" track, Shaft diameter: 7/16", and rating of 125lbs per roller @ 20,000 cycles 12' door. Need a quantity of 10? Enter "Set of 10---2 Inch 13 Ball Nylon Garage Door Roller (4 Inch Stem)" in Amazon search box.