# Tiers


## Fields

| Field                                        | Type                                         | Required                                     | Description                                  |
| -------------------------------------------- | -------------------------------------------- | -------------------------------------------- | -------------------------------------------- |
| `to`                                         | [models.AttachTo](../models/attachto.md)     | :heavy_check_mark:                           | The maximum amount of usage for this tier.   |
| `amount`                                     | *float*                                      | :heavy_check_mark:                           | The price of the product item for this tier. |