This silver pewter 3 dimensional baseball or softball ball is nice. It is 6mm in diameter. It does come with a jump ring.
Look in my ebay store for the many other baseball/softball charms also for sale! I also have volleyball, basketball, tennis, soccer, dance, cheer leading, swimming, ballet, tap, skating, skiing, water polo, wrestling, football, karate, hockey, lacrosse, golf, running, bowling, skating boarding and others I can't think of right now.