Non-marking phenolic caster wheels provide durable, low-maintenance mobility where strength, temperature tolerance, and reliability are essential. Made from compressed layers of resin-infused fibers, they roll easily on smooth, flat surfaces and can withstand chemical exposure. However, they do not resist moisture and should not be used in damp environments. The rigid construction of the caster rig ensures steadiness in straight-line transport and stability when used in conjunction with swivel casters for applications where some turning is needed.