This auction is for a pre-owned Jumbo marble.  It is clear with white and gray swirls inside,    I would say it is a shooter marble.    Highly collectible and would be a must have for your collection.

Thanks so much for checking out my ebay auction item and be sure to take a look at all my other listings before you leave.  Also check back often as I will adding new and different items on a daily basis in a wide variety of categories.  Thanks again and Good Luck and Happy Bidding!!