Instance bindings help to bind a type to a particular instance of that type. This is normally helpful only for objects that don't have dependencies in their possession; for example, value objects:

Public class SearchModule extends AbstractModule{
    @Override
    protected void configure() {
        bind(SearchParameters.class).toInstance(new SearchParameters());
    }
}

Avoid utilizing .toInstance with objects that are complicated to make, since it can slow down application start-up. You can utilize the @Provides technique.