A door closer that’s “punch-free” sounds like it might be designed for easy installation without the need for drilling or other invasive methods. These types of door closers are usually meant to be mounted using adhesive strips or other non-permanent methods. They’re great for situations where you want to avoid damaging the door or frame, such as in rental properties or temporary setups.

If you’re considering one, here are a few things to keep in mind:

1. **Adhesive Strength**: Make sure the adhesive or mounting method is strong enough to hold the door closer securely over time.

2. **Door Weight and Size**: Check the specifications to ensure the closer can handle the weight and size of your door.

3. **Ease of Adjustment**: Look for features that allow you to adjust the closing speed and force, so you can tailor it to your needs.

4. **Surface Compatibility**: Verify that the mounting surface (the door and frame) is suitable for the adhesive or mounting method used.

Would you like more details on any specific aspect of these door closers?