Description Made of high-quality iron and PP material, it is sturdy and durable. Heavy-duty casters are suitable for industrial applications. Designed for smooth 360-degree rotation with ball bearings and dual-wheel bearings for enhanced mobility and durability. Features a stable structure for excellent load support and vibration resistance, ensuring long service life. Universal swivel caster helps prevent floor scratching. Features - Color: As shown - Material: PP and iron - Size: Approximately 6.30 x 3.80 x 3.80 cm (2.48 x 1.49 x 1.49 inches) - 360-degree rotation with ball bearing and dual-wheel bearing for smooth movement - Constructed from durable materials for long-term use - Simple design for easy installation - Ideal for use on chairs, cabinets, tables, and other furniture - Each wheel supports up to 80 pounds under static conditions and 65 pounds under dynamic load Packing List 4 x Universal casters