Blickle lk alth heavy duty swivel castors and wheels 125160mm blickle 605741 this lk alth 125k 1 fi heavy duty swivel castor and wheel from blickle features a oslash 125mm wheel manufactured with a pressed steel swivel castor top plate fitting and stop fix brakethe bracket is made of heavy pressed steel with a double ball bearing in the swivel head ball protection by the special top plate and ball disc design the special blickle dynamic riveting process of the swivel head results