The Proyo by Duncan is a great introductory yo-yo for players looking to just do the basics. This yo-yo does not have a ball bearing so you won't want to use this for string tricks but it is excellent for the "beginner" level.
The yo-yo features a wooden axle with a take apart design so you can still get your knots out easily.
You won't be learning advanced string tricks on this but great for beginner tricks like the Sleeper, Walk the Dog, Forward Pass, Around the World, etc.