I used to have a 45 chrome X-pert now I have a 50 chrome and boy oh boy do I love it. I find that the 50 makes my spins much much better than they were on a 45 and I have tiny little baby hands and I'm only 5'2. Although I did learn all my spins on a smaller diameter pole which may have helped but for some reason I find that I execute them cleaner on the 50, something about the way I hold it I guess. I highly recommend gettingthe X-pole X-pert. It is amazing, really awesome pole. Other than that I used to dance on a brass lil mynx, I think 50mm but I don't remember and I absolutely HATE brass poles. It did not work with my skin I stuck like a bandaid to that thing and had no give at all which was bad bad bad.