Blickle bh alst heavy duty fixed castors and wheels 100125250mm blickle 579524 this bh alst 250k heavy duty fixed castor and wheel from blickle features a oslash 250mm wheel manufactured with a pressed steel fixed castor and top plate fittingthe bracket is made of pressed steel and is equipped with a bolted wheel axle zinc plated blue passivated and cr6 freethe wheel tyre and running tread is manufactured with high quality reaction injected polyurethane elastomer blickle softhan