Got the #2 for my house keys. Size is perfect for a "user" biner. Set up has 2 key rings, one with 2 keys, the other with a shard, and a tube on a TEC python.

When I got it, one of the clips/wire is slightly bent which makes unlocking it somewhat harder and tighter, I just decided to use that side as the holder which i wouldn't really need to open and unlock regularly. After a few months of use the lock on the other side slid off (my doing) it got stuck on the belt loop as i was trying to un-hook it. I found it to be a better set up however, quicker and easier release when i need it yet still has a secure lock on the side which serves as the holder.

wonderful ingenious little tool that gets the job done.

Got the #2 for my house keys. Size is perfect for a "user" biner. Set up has 2 key rings, one with 2 keys, the other with a shard, and a tube on a TEC python.

When I got it, one of the clips/wire is slightly bent which makes unlocking it somewhat harder and tighter, I just decided to use that side as the holder which i wouldn't really need to open and unlock regularly. After a few months of use the lock on the other side slid off (my doing) it got stuck on the belt loop as i was trying to un-hook it. I found it to be a better set up however, quicker and easier release when i need it yet still has a secure lock on the side which serves as the holder.

wonderful ingenious little tool that gets the job done.

using them both, very satisfied

I got four pieces for my backpack, works well and could carry my stuff as expected. Really strong.

Bought the #2 and #4. The SlideLock is a simple yet effective feature and gives me peace of mind and reassurance that my keys or whatever I attach will fall off.