What Does the Error #404 H Harness Offer for Pulling?
If your dog pulls on the leash, you're likely looking for a harness that provides better control without causing discomfort. The Error #404 H Harness from Zee.Dog is part of the Glitch collection and is designed for daily use. Its key features—full adjustability and two D-ring placements on the back—are directly relevant to managing pulling behavior.
The two D-rings give you options for where to attach the leash. A clip closer to the dog's shoulders can reduce leverage for pulling, while a clip further back may offer more steering control. This isn't a training tool, but it gives you flexibility to find what works best for your walks.
Key Features at a Glance
- Error #404 | H Harness: The Error #404 H Harness is fully adjustable. A proper fit is essential for any harness to work effectively. Adjustability helps you snug the harness without restricting movement, which can reduce the dog's ability to pull comfortably.

Error #404 | H Harness - Error #404 | H Harness: It has two D-ring placements on the back, providing two safe options to clip your leash. Having two attachment points allows you to experiment with leash position. A front clip (not present here) is often recommended for pulling, but a well-placed back clip can still offer control, especially with the right fit.
How Adjustability Helps with Pulling
A harness that fits poorly can actually encourage pulling by slipping or rubbing. The Error #404's full adjustability means you can tailor it to your dog's body shape. Snug but not tight around the chest and neck gives you better connection to the dog's movements, making it easier to redirect them.
The harness comes in sizes Extra Small, Small, Medium, and Large, so you can match it to your dog's measurements. Keep in mind that the catalog does not provide specific sizing charts, so you'll need to measure your dog's chest girth and neck circumference and compare with Zee.Dog's size guide if available.
The Dual D-Ring Advantage
Many harnesses offer only one attachment point. With two D-rings, you can choose the one that gives you the most control for your dog's pulling style. For example, if your dog tends to lunge forward, clipping to the D-ring closer to the shoulders may reduce their ability to gain momentum. If they pull steadily, the rear D-ring might give you better leverage to steer.
Note that this is an H-harness design, which distributes pressure across the chest and shoulders rather than the neck. This is generally more comfortable for dogs that pull compared to a collar. However, it does not have a front clip for martingale-like correction, so it's best suited for mild to moderate pulling.
Honest Trade-Offs
The Error #404 isn't marketed as a no-pull harness, and it lacks a front attachment point that some trainers prefer for pulling. If your dog is a strong or determined puller, you might need a different design or additional training tools.
Also, the catalog does not specify the material or padding, so we can't confirm how it handles long-term wear or if it's suitable for dogs with sensitive skin. The price point (USD 13.59, compared to USD 19.99) makes it an affordable option to try, but be prepared to adjust fit carefully.
Is It Right for Your Dog?
The Error #404 H Harness can be a practical starting point if you're dealing with a dog that pulls occasionally or mildly. Its adjustability and dual D-rings give you room to experiment with leash placement. For more persistent pulling, consider pairing it with training or looking for a harness with a front clip.
Ultimately, no harness replaces consistent training, but the right gear makes walks more manageable. The Error #404 offers a comfortable, customizable fit at an accessible price.

