Enhance your gaming or office chair's mobility experience with this 5-pack of high-grade rollerblade casters from Moonboys. These caster wheels are designed to provide a smooth and quiet roll, without leaving any scratches on your floors. The soft polyurethane material of these wheels ensures their silent operation, making them perfect for use in quiet work environments. Measuring 3 inches in diameter and with a wheel width of 0.92 inches, these caster wheels are suitable for a variety of applications including office chairs, tables, and more. The stem length of these wheels is 7/8 inch (22mm) with a stem diameter of 7/16 inch (11mm). These caster wheels are made in China and are a great addition to your workspace.