Upgrade your workspace mobility with these Heavy Duty Office Chair Swivel Wheels, designed for smooth 360-degree rotation and effortless movement. Constructed with a durable twin-wheel design, these rollers feature a high-quality plastic wheel and a sturdy metal stem for long-lasting performance. These universal stem-mounted casters are available in two specific sizes to ensure compatibility with your furniture: a 10mm pin for Euro standard chairs and an 11mm pin for standard local and imported chairs. The easy plug-in fitting allows for a quick and tool-free installation, making it the perfect solution for restoring the maneuverability of your office or home desk chair. Features: • 360-degree swivel capability allows for seamless multidirectional movement • Twin wheel roller design provides enhanced stability and weight distribution • Heavy-duty plastic construction with a metal stem ensures durability • Easy plug-in fitting system allows for quick and convenient replacement • Universal stem mount compatible with various office chair models • Smooth movement technology protects surfaces and reduces noise during use Specifications: Material: Heavy Duty Plastic and Metal Wheel Diameter: 50mm / 2 inch Wheel Height: 55mm Size: 11mm (Asia Standard / Local / China) Package Included: • 1 x Office Chair Swivel Wheel Roller *** IMPORTANT Information For Size Option *** 10mm Pin Size >> Euro Standard >> Fit for IKEA chair 11mm Pin Size >> Asia Standard >> Fit for most Local & China chair