It’s all standard sizing, like most metal yo-yos these days… nothing special about it. Oh wait you meant length? Yeah I guess that can vary depending on how deep the axle is tapped into each side 
But I don’t think it would vary all that much from yo-yos of similar size and shape, so that’s my suggestion. Don’t compare it to, say, a CLYW with a giant axle protrusion on each side of the cup, of course!
