Blickle le po swivel castors and wheels 75100125150160175200mm blickle 231431 this le po 150g swivel castor and wheel from blickle features a oslash 150mm wheel with pressed steel castor and top plate fitting equipped 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 in minimal swivel head play and smooth rolling characteristics with an increased ser