That's a Ludwig L-13245-H hoop mount stick holder.Best stick holder i've seen was a coil shaped toast rack. The guy had locked it onto his bass drum, could easily gaffa tape one to your tube.
I have the dixon one and I have been using it for over 10 years now and you can clamp it to any tube, cymbal stand, tom arm, drum stool, snare stand, rack tube, etc. Mine has been clamped to my high hat stand for many years now and it works great. The problem I find with stick bags is I dont care for them hanging between me and the floor tom as my leg hits it all the time or I have to push the tom farther away than I like it and if the bag is hung further around the floor tom its harder to see what particular stick you are grabbing as I have several different types in mine, then you have to reach further to get them which might not be that easy to do if you happen to need a new stick mid song. Plus some people seem to think a stick bag resting on one side of your tom will change the tone and resonance of it, either way I still keep all my sticks in a bag on the floor but always have a few in the stick holder on my high hat stand for easy access when needed.Do not get the dixon one. I have it, and the places you can clamp it are very limited. Get a stick bag that hangs off your floor toms