I have a Rite bobbin that I use for spinning deer hair.

It's not in any way an Ekich Bobbin, though.

The Rite maintains an adjustable tension on the thread. That's it's prime feature and one that I like because I can set it for heavier threads.

The Ekich will rewind the thread, which is it's prime feature. The literature says that this is 'essential' for rotary tying, but I use a rotary vise and so far I've not had any trouble with using a standard bobbin. I can see where the rewind capability would be nice, though.

I do like neat tools, though, and the Ekich certainly meets the 'neat tool' criteria for me. I've been considering one of the NorVise bobbins, but the Ekich will use standard spools where the NorVise one won't. Might be fun to have one, someday.

Buddy