Ballast Weighted Training Ball with Raised Seams ¥ Used for optimum resistance to develop strength and power ¥ Provides instant feedback on contact ¥ Limited space required when training with the Ballast Weighted Ball ¥ Weighted ball can be used with all bats 9" Ballast Balls (14 oz) 6 Pack (BN-BALLAST 9-6PK) ¥ Shipping Box Weight - 24lbs ¥ Shipping Box Size - 9" x 7" x 3" ¥ Master Carton: (4) 6 packs 24 Loose Packed (BN-BALLAST 9) ¥ Shipping Box Size - 17" x 13" x 9" ¥ Master Carton: 24 ea 12" Ballast Balls (18 oz) 6 Pack (BN-BALLAST 12-6PK) ¥ Shipping Box Weight - 29lbs ¥ Shipping Box Size - 9" x 7" x 3" ¥ Master Carton: (4) 6 packs 24 Loose Packed (BN-BALLAST 12) ¥ Shipping Box Size - 17" x 13" x 9" ¥ Master Carton: 24 ea