Magziod 48 magnetic building set with No Loose Balls! Offered exclusively by MAGZ Magzoid is a magnetic building set consisting of magnetized bars and combo bars. The combo bars contain a magnet at one end and a steel ball at the other end. Safety comes first! There is no loose ball. The steel balls and magnets are both secured within the plastic to prevent choking or ingestion. Magzoid is compatible with regular Magz items (Magz51, Magz89, DynaMagz114, MegaMagz) in case you wish to combine them.