Custom Object Permissions
Read the "Standard and Custom Object Permissions" section in the Salesforce Help before setting a profile's custom object permissions.
To set custom object permissions manually:
- From Setup, click Manage Users | Profiles.
- Grant each user profile appropriate basic permissions to create, read, edit and delete records for each custom object.
- Click Save.
- Repeat these steps for all other relevant profiles.
See the Salesforce Help for more information.