Mizuno baseball base set with storage bag - Brand: Mizuno - Item Type: Baseball base set - Quantity: Set of 4 - Condition: New - Accessories: Storage bag Thank you for viewing. I purchased this when my child was learning baseball and stored it in the closet at home. I am selling it because I no longer need it. Although it is new and unused, please note that there are some stains from when it was stored. The home base size is 430mm and 10mm thick.