<p>Caster Wheel, Load Rating 300 lb., Wheel Dia. 4 In., Wheel Width 1-1/4 In., Wheel Material Thermoplastic Rubber, Wheel Color Gray, Core Material Polypropylene, Hub Length 1-1/2 In., Fits Axle 3/8 In., Spanner Bushing Not Included, Core Color Gray, Precision Ball Wheel Bearings, Temp. Range -45 to 180 Degrees F, Durometer 70 Shore A, Resistant To Water, Oil, Chemicals, Most Acids, Features Donut Tread, Bore Dia. 3/8 In.</p> <p><br /><b>Features</b></p> <ul> <li>Includes: Thread Guards</li> <li>Item: Caster Wheel</li> <li>Core Color: Gray</li> <li>Load Rating: 300 lb.</li> <li>Wheel Color: Gray</li> <li>Resistant To: Chemicals, Most Acids, Oil, Water</li> <li>Durometer: 70 Shore A</li> <li>Wheel Width: 1-1/4&quot;</li> <li>Bore Dia.: 3/8&quot;</li> <li>Wheel Dia.: 4&quot;</li> <li>Fits Axle Dia.: 3/8&quot;</li> <li>Spanner Bushing: Not Included</li> <li>Caster Load Rating Range: Light-Medium Duty</li> <li>Caster Wheel/Tread Material: Thermoplastic Rubber</li> <li>Caster Core Material: Polypropylene</li> <li>Caster Wheel Bearings: Ball</li> <li>Caster Temp. Range Available: Yes</li> <li>Caster Temp. Range: -45 Degrees to 180 Degrees F</li> <li>Non-Marking: Yes</li> <li>Caster Wheel Shape: Donut Tread</li> </ul> <p></p>