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Heavy Duty Polyurethane Swivel Caster Wheels, Double Wheel Design, Replacement for Equipment and Trolleys, 4 Pcs with Brake, 62mm (2.5 Inch)
Durable Heavy-Duty Construction: Crafted from high-quality polyurethane materials with galvanized support, these wheels feature 360-degree rotation for flexible operation. They roll smoothly and quietly while being wear-resistant and built to last....
https://www.bizrate.co.uk/homehardware/heavy-duty-polyurethane-swivel-caster-oid40490301997.html