For those that are wondering how similar this is to Odyssey, it's entirely different. The gimmick will last forever and pretty much has no chance of breaking. That being said, about 3/4 the work is done by you. You'll need to learn the moves/sleights to make the rings travel, link, etc. This isn't as visual and eye candy as Odyssey but I feel that it's more reliable since you do the work. It also allows you to link borrowed rings onto your own. In terms of sizing, I'd buy one size up for sure. A gimmick too tight will just be useless to you so it's better to size up rather than down. Lastly, traveling from finger to finger can be done with this, but I would not recommend you do. It's better to just go from your first to pinky finger because this requires you to cover your hand for a few seconds. The key function of the halo project isn't so much a ring through fingers, but borrowing a ring and linking/un-linking it. Think about the style of magic and effect you're looking for first if you're stuck between Odyssey and Halo Project.