Per level
| I | II | |
|---|---|---|
| Extra knockback | 1 | 2 |
Goes on
At the enchanting table
| Level | Enchanting power |
|---|---|
| Knockback I | 5–55 |
| Knockback II | 25–75 |
The table can offer a level when its rolled enchanting power lands in that range. The power comes from the slot's level cost (up to 30 with 15 bookshelves), the item's enchantability and some randomness, so it is not the same as the experience cost.