Petmarlow Retractable Heavy-Duty Nylon Dog Seat Belt

• One adjustable universal size — designed to fit most vehicles and to attach to a harness D‑ring. Recommended for small-to-medium dogs up to ~50 lbs (examples: French Bulldog, Pug, Beagle, Cocker Spaniel, small terriers).
• What it does: limits forward movement in the car while allowing your dog to sit or lie down comfortably. Attaches to most harness D‑rings and most vehicle seatbelt buckles.
• If your dog is larger than ~50 lbs: consider a heavy‑duty harness and a crash-tested restraint designed for large breeds.

How to confirm this seat belt will fit your dog (quick, 3-step check)

1. Measure your dog’s harness fit: use a tape measure to record neck circumference at the base and chest girth around the widest part of the ribcage (write both down in inches).
2. In your car, put the harness on your dog where they will ride. Clip the seat belt to the harness D‑ring and sit your dog in the usual spot. The tether should allow your dog to sit and lie down but should prevent them from reaching the front seats or roaming freely.
3. If the clip easily reaches and secures to your harness D‑ring and the dog’s movement is suitably limited, the fit is correct. If the clip cannot reach the D‑ring or the dog can reach the front area, choose a different restraint option.

These simple checks ensure the adjustable strap works with your harness and vehicle without needing exact strap measurements. Follow the harness fit first (neck and chest) and then confirm the in‑car tether test described above.