Nite Ize S-Biner MicroLock Stainless Steel - Durable Key Holder Carabiner Clip - S-Biner with Locking Gates - Durable & Strong Mini Carabiners for Keychain Accessories - Spectrum (5 Pack)

I've had these for over a year on my dogs's collars for their name tags. They lock and stay locked incredibly well. Haven't had one fail yet. They have maintained color as well. Overall, I would say they're very sturdy (I have a medium and a large dog who swim and play rough).

These are awesome. They were great size for keeping backpack zippers locked. I like the fact that they can be locked out which makes them harder to open. Also very helpful for when you’re traveling for loose keys, etc..

Bought several of the small size of these to secure zippers on suitcases, backpacks and purses while traveling through Italy and they worked great! Hubby was fine with the black but I liked the fun colors. They hook 2 zippers together and then lock to further protect. Worked great! I’ll definitely use for further travel. Even used on our checked bag and held secure and super durable.

A little too stiff because you can't hardly open them without a pair of pliers to pry them and hold them down. Other than that, they work great.

These work well! They are take a little work to get open, which is basically the point. I’m using them to deter pickpockets. They are small enough to go on backpack or cross body zippers. Check the size, because they are very small! Durable and a fun color!

I got these because they are small and I had been having a problem with the common metal rings used to attach keys to key rings catching and pulling my good clothes. These lock tight to prevent keys from working off the key chain. I love them because they are so small, secure, and don't ruin my good knits! Someone said they are impossible to unlock. They can be difficult the FIRST time, especially for someone with arthritis, weak hands or large hands. I used a needle nose pliers the first time. I don't yet know if the locking mechanism will be sturdy enough to hold up over a long time and much use but I think they are well made so they should last. I LOVE THEM.

I bought two and ended up buying five more. The best part about these is they are LOCKING so I never have issues with the clip opening and losing my stuff!They are small enough to not bulk up your pockets etc. I use them for snowboarding to keep my wallet/phone/keys/etc clipped to my pockets/zippers so I don’t loose anything while on the chair. Also use them for attaching items to my dogs leash/vest.Perfect size and work great!!

Perfect for keeping zippers secure on a vacation in Italy where pickpockets are everywhere. Love the extra locking feature.