The bats range in size from 29 to 35 inches and in weight from 35-100 oz. They come in the following lengths and sizes:
| Length (in) | Weights (oz) |
| 29 inch | 35 oz, 40 oz, 45 oz |
| 31 inch | 50 oz |
| 32 inch | 55 oz |
| 34 inch | 60 oz, 65 oz |
| 35 inch | 70 oz, 75 oz, 80 oz, |
When choosing a bat, you should choose a bat similar in length to the bat you swing at the plate. This will help develop a more powerful, quick swing. As a starting point, try doubling the weight of your regular bat and then moving up or down in weight depending on what level of work-out you want to train with. Below are some suggestions for bat sizes based on age group, to be adjusted as required.
| Age | Bat Length | Bat Weight |
| 6-7 | 29 | 35 |
| 8-9 | 29 | 40-45 |
| 10-12 | 29-31 | 45-50 |
| 13-15 | 32-34 | 55-60 |
| 16-18 | 34-35 | 65-75 |
| 18 and up | 35 | 65-100 |
The table above is a rough guide for selecting the weight of your Bratt's Bat. A large ball player may want to choose a heavier size than listed for their age group. Pre-puberty players should not, however, consider moving to a heavier bat.
