Listing is for one (1) Service Caster Series #30 stainless steel swivel caster with a 6" diameter by 2" wide glass filled nylon wheel and maintenance free precision ball wheel bearings and a side lock brake capable of supporting 1,200 lbs./caster. When searching for a reliable and durable heavy duty solution to your caster needs, consider Service Caster?s Series 30 stainless steel glass filled nylon casters. The Service Caster Series #30 is ideal for medium and heavy duty material handling, carts, equipment, and shop projects. The glass filled nylon wheels provide very low rolling resistance, show a high resistance to many aggressive substances, will not flat spot, and under normal operating conditions are maintenance free. Resistant to most chemical and oils, these glass filled nylon wheels will keep you safely moving forward. In contrast to the zinc plated caster, the luxuriously polished stainless steel finish resists rust and corrosion in indoor or outdoor applications where moisture is a factor. Service Caster is unsurpassed in quality, reliability, and excellent customer service. Count on us to move you forward.