Brand new technology. Soft flap makes it easier for pets to learn and use the door. No fear of getting wedged or snapped by a hard plastic flap. ...
Most pet doors have solid or hard plastic door flaps that can present problems for pets who begin to travel through the door and then decide to back up. This sometimes happens in the early stages of learning to use the door. Pets who back out of traditional doors are often caught in a "Chinese-finger-puzzle" squeeze. The flap prevents the backward motion and causes panic that can keep your pet from ever trying the door again.
Perfect Pet SOFT FLAP cat doors have a clear, soft vinyl 2-way flap that is safe for paws, ears and tails and is magnetized to a floating sill for good closure.
Soft-Flap Pet Door Sizes:
Small: 5"x7"; Toy Breeds and Cats up to 12 Lbs
Medium: 7"x11": Cats and small dogs up to 25 Lbs.