2-1/2" x 2" Neoprene Twin Wheel Swivel Caster with 1/2" Threaded Stem - 300 Lbs Capacity2 1 2" x 7 8" NEOPRENE TWIN WHEEL SWIVEL CASTER WITH 1 2" THREADED STEM Part #: 432 1 2LXKN Neoprene Rubber makes a soft, solid wheel specially formulated with a premium compound to withstand wear and abrasion while resisting oil, grease, and most chemicals. Soft tread is permanently molded to a hard center core for added strength and higher load capacities. Excellent grease, oil and chemical resistance. Withstands weather and ozone exposure. Will not