A brute of a bat, over-size & over-weight
The Tom Cat Stump meant as a serious training tool supervised by a knowledgeable coach. The barrel is usually 2 7/8" (some may be barely within 2-3/4" reg. size) and the weight is from 3 to 6 oz over (repeat: over, not under). After swings in training or on deck with this baby, your game bat will feel like a toothpick. The advantage of the Stump over, say, bat donuts or fins - the balance.