Fixed Polyamide caster wheels, Heavy duty casters,heavy duty nylon caster wheels Material:Poly-amide Size:Option:75mm x 30mm,100mm x 32mm,125mm x 37mm ,152 x 40mm,200mm x 50mm Loading:70kg~280kg Type: Swivel caster,fixed casters Accessories: Anti winding cover,dust cover Purpose:textile mill caster,Anti winding caster wheels www.casterwheelsco.com ; [email protected]