Staywell Magnetic Collar Key - Pack of 2 By Petsafe

I had some issues with cheaper imitations but this genuine key is reliable

It has held up well through all his outdoor adventures. Very sturdy plastic casing

A simple product that does exactly what it is supposed to do perfectly

For the price it is a durable and reliable accessory that is essential for the cat flap

My cat has not lost it yet and it works every time. Perfect product

Now only my cat can enter the house. This key provides the security I needed

The magnet is strong and activates the flap easily without being too bulky on his collar

Exactly the right key for my Staywell magnetic cat flap. Fast delivery too

Simple to thread onto the collar and it is lightweight so it does not bother my cat

The magnetic key works reliably every single time. Solved my problem with neighborhood cats getting in