This 6-inch by 3.25-inch Nytec-MD Caster Wheel are engineered with a specialized Nytec-MD material that combines nylon strength and metal detectability. These wheels offer exceptional durability and enhanced safety in a variety of environments where they excel at dispelling foreign object debris (FOD). Designed for industrial environments, they provide high load-bearing capacity, wear resistance, and reliability. The unique metal detectability feature ensures compliance and a safe working environment by enabling easy detection and removal of wheel fragments. Combining the impressive Nytec material with its precision sealed ball bearing, which keeps you from performing any maintenance, this is an excellent wheel for continuous applications carrying loads up to 4630 lbs.