Like my train pass wallet, these objects fall into the category of things I touch and use every day. Carabiners are intended for mountain climbing, but their simple design and great utility make them super-useful to city dwellers like me, who only climb subway steps. I use them in the photo studio, during event coverage, and for my dogs, and I now wonder how I ever got by without them.
Leash Splitter
These were initially pet-driven purchases. Because I own two dogs and spend up to two hours a day outside with them I was looking for a way to hold two leashes in one hand and prevent the leashes from becoming entwined. First I bought this thing, which is called a rotor swivel:
I spotted it at a mountain climbing equipment store across the street from Core77 HQ. It's just two aluminum loops attached by an enclosed bearing that allows them to rotate independently, and it set me back forty bucks. Being designed for climbing, I figured it's got to be watertight, which I'd need to weather thunderstorms (I'm out with the dogs rain or shine).
Next I sewed a length of webbing through it to serve as a handle. (If any of you are interested in working with canvas webbing but don't know how to sew, please pipe up in the comments and I'll prepare a basic tutorial. With a simple trick, someone with no skill can use even a junky sewing machine to sew canvas webbing.)
Then I needed a carabiner to attach the two leashes to the rotor. Mistakenly thinking beefier would be better, I initially bought this Omega Pacific locking carabiner at the same equipment store for ten bucks.
However, I found this carabiner too bulky, and together with the rotor it added too much weight to the leashes for my taste. But at the hardware store I spotted these cheapie "key holder" carabiners for just a few bucks.
They appear to be made from aluminum and one can be used to handily attach the rotor to the two leash handles.
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