The Making of a Manager: What to Do When Everyone Looks to You

Mr O-Ring 5.7X219.3 Metric Nitrile O-Ring - 70A Durometer, 219.3 mm ID, 230.7 mm OD, 5.7 mm CS, Black (Pack of 5)

Mr O-Ring 3.5X13 Metric Nitrile O-Ring - 70A Durometer, 13 mm ID, 20 mm OD, 3.5 mm CS, Black (Pack of 250)

Mr O-Ring 4X97 Metric Nitrile O-Ring - 70A Durometer, 97 mm ID, 105 mm OD, 4 mm CS, Black (Pack of 25)

Mr O-Ring 5X93 Metric Nitrile O-Ring - 70A Durometer, 93 mm ID, 103 mm OD, 5 mm CS, Black (Pack of 10)

Mr O-Ring 5X370 Metric Nitrile O-Ring - 70A Durometer, 370 mm ID, 380 mm OD, 5 mm CS, Black (Pack of 2)

Mr O-Ring 1.8X36.5 Metric Nitrile O-Ring - 70A Durometer, 36.5 mm ID, 40.1 mm OD, 1.8 mm CS, Black (Pack of 100)

Mr O-Ring 2.5X7 Metric Nitrile O-Ring - 70A Durometer, 7mm ID, 12mm OD, 2.5mm CS, Black (Pack of 500)

Mr O-Ring 4X360 Metric Nitrile O-Ring - 70A Durometer, 360 mm ID, 368 mm OD, 4 mm CS, Black (Pack of 2)