Product Name: Threaded Stem Caster Wheel Type: 360 Degree Rotation, Dual Wheel Wheel Size: 40 x 9mm (D*T) Overall Size (Approx.): 45 x 35 x 60mm (L*W*H) Threaded Stem Diameter: 6mm Threaded Stem Length: 12mm Material: Plastic, Metal Color: Black Weight: 46g Features: 360-degree rotation, threaded stem connector, twin-wheel design, suitable for office chairs and similar applications. Commonly used in furniture, hand trolleys, shopping carts, appliances, and various industrial equipment. Package Contents: 1 x Threaded Stem Caster Wheel Note: The package includes only the items listed above. Other products are not included. Due to lighting and display differences, the actual color may vary slightly from the image. Measurement may vary by +/- 1-3cm.